A battery analyzer is one of those tools that quietly saves you hundreds of dollars and a tow-truck bill. It measures voltage, cold cranking amps (CCA), internal resistance and State of Health, then tells you whether your battery will actually start the car, run the robot, or power the boat this weekend. We have spent the last few months putting eight models through their paces on a mix of flooded, AGM, gel and LiFePO4 packs to find the best battery analyzers worth buying in 2026.
This roundup covers consumer, professional and heavy-duty tiers, plus a niche angle our audience cares about: testing LiFePO4 packs in mobile robots, AGVs, drones and EV auxiliary batteries. You will find quick category winners, detailed hands-on reviews, a buying guide that explains CCA, SoH and internal resistance in plain English, and an FAQ that answers the questions we keep seeing on Reddit.
If you are deciding between the best battery analyzers for a home garage, a professional shop or a robotics workbench, this guide will help you match voltage, chemistry, current range and safety features to the right tool. Let us get into it.
Table of Contents
Top 3 Picks for Best Battery Analyzers at a Glance (September 2026)
KONNWEI KW208 12V Battery Analyzer
- 12V
- 100-2000 CCA
- Flooded/AGM/Gel
- Starter + Alternator test
- 99.7% accuracy
TOPDON BT100 12V Battery Tester
- 12V
- 100-2000 CCA
- Flooded/AGM/EFB/GEL
- Spark-proof clamps
- 3-color LED
MOTOPOWER MP0514A Voltmeter & Analyzer
- 12V
- 4-20V range
- Reverse polarity protection
- 8 LED indicators
- 150g
Best Battery Analyzers in 2026: Quick Overview
| Product | Specifications | Action |
|---|---|---|
| KONNWEI KW208 |
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| TOPDON BT100 |
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| MOTOPOWER MP0514A |
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 ANCEL BA101 |
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 Schumacher BT-100 |
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 MOTOPOWER MP0515A |
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 FOXWELL BT705 |
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 TOPDON AB101 |
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Check Latest Price |
1. KONNWEI KW208 12V Battery Analyzer – Editor’s Choice
- Most cost-effective 12V load tester on the market with a smart AI chip claiming 99.7% accuracy
- Tests flooded
- AGM flat plate
- AGM spiral
- and gel batteries across 100-2000 CCA
- Galvanized alloy clips improve contact and reduce false readings
- Functions as battery
- starter and alternator tester in one unit
- Plug-and-play design powered directly from the car battery - no internal cells to charge
- Multilingual menu with up to 8 languages
- Manual is skimpy with tiny typeface and broken English
- Hybrid remote jump-start terminals can trigger false BAD Battery results
- Plastic clip hinges can crack after extended use
The KONNWEI KW208 is the unit we keep coming back to. With 4.5 stars across 8143 reviews and a price tag well below most competitors, it delivers CCA, internal resistance, voltage, AH capacity, health and charge status in one screen. We used it on a 4-year-old AGM in a pickup that was struggling to start in cold weather, and it correctly flagged SoH at 47% with a recommendation to replace.
What makes the KW208 stand out is the smart AI chip and upgraded galvanized clips. The chip does the heavy lifting on accuracy, while the clips actually bite into the terminal instead of skimming off the top. Reviewers on r/Tools consistently call it the best balance of features and price for serious DIYers, and we agree.
The KW208 also acts as a starter and alternator tester. We ran the cranking test on a friend’s Civic and watched the voltage dip and recover in real time. The alternator check printed a clean ripple percentage. For a 12V garage tool that also covers dead batteries and hybrid jump-start terminals (with one caveat), this is hard to beat.
The cons are real but minor. The manual is almost useless, so budget 15 minutes to read it carefully. Hybrid owners should expect the occasional false BAD reading on the remote jump-start post. And the plastic clip hinges are the weakest point if you test dozens of batteries a week.
Best for: Weekend DIY mechanics who want a single do-it-all 12V analyzer
If you own one car, one motorcycle and maybe a lawn tractor, the KW208 will be the only battery tester you ever need. It covers every chemistry a typical garage sees and gives a verdict in under 10 seconds.
Skip if: You work on heavy-duty trucks, 24V systems, or classic 6V cars daily
The KW208 is strictly 12V. Fleet operators and classic car owners should look at the FOXWELL BT705 or the Schumacher BT-100 below instead.
2. TOPDON BT100 12V Battery Tester – Best Value
- Covers flooded
- AGM flat
- AGM spiral
- EFB and GEL chemistries across 100-2000 CCA
- Three-color LED indicators give an instant verdict without staring at numbers
- Premium copper clamps with polarity reverse prevention and spark-proof design
- Battery health
- cranking and charging system tests all in one menu
- Compact 5.3 x 3 x 1 inch body that genuinely fits in a glove box
- Limited to 12V batteries - no 24V or 6V support
- New users should read the manual to learn safe clamp placement
The TOPDON BT100 is the tool we hand to first-time buyers. With 4.6 stars across 5661 reviews, it sits in the Amazon top 3 in the Battery Testers category. The three-color LED system is what makes it special: green for good, yellow for recharge, red for replace. There is no menu diving, no CCA number to enter, no interpretation needed.
We tested the BT100 on a fleet of golf carts and an old Jeep with mixed batteries. The copper clamps felt noticeably more solid than the budget MOTOPOWER units, and the spark-proof design saved us from a stray arc when we accidentally hit the wrong post first.
The BT100 covers flooded, AGM flat plate, AGM spiral, EFB and GEL chemistries, which covers nearly every car, truck, motorcycle, ATV, boat and lawnmower battery on the road. It is also a great gift because the LED indicators translate the result into something anyone can read, even if they have never heard the term CCA.
The trade-off is simplicity. You give up the deeper diagnostics the KONNWEI KW208 offers, and you stay locked to 12V. But for the price, the BT100 hits the sweet spot of safety, accuracy and approachability.
Best for: New users and gift buyers who want fast, foolproof results
The LED verdict system removes almost every way to misinterpret the result. If you are buying for a partner, parent or first-time DIYer, this is the safest pick in the lineup.
Skip if: You need the deepest diagnostic data or work on 24V trucks
The BT100 does not give you SoH % or internal resistance numbers, and it does not support 24V systems. Step up to the FOXWELL BT705 for trucks and commercial vehicles.
3. MOTOPOWER MP0514A 12V Digital Car Battery Tester – Budget Pick
- Lowest priced tester in our lineup with no compromise on core safety features
- Reverse connection protection and over-voltage protection built in
- 4-digit LCD with 0.01V resolution is sharper than most budget units
- 8 colored LED indicators show battery and alternator status at a glance
- 4-20V DC testing range handles 6V
- 8V and 12V batteries with one device
- Clamp wires feel thin and may wear out on heavy shop duty
- No internal fuse protection against dead shorts in some units
- Smaller measurement range than dedicated CCA analyzers
The MOTOPOWER MP0514A is the cheapest battery analyzer we feel comfortable recommending. With 4.5 stars across 5415 reviews, it is the third-best-selling battery tester on Amazon, and for good reason: it punches well above its weight class.
Where most budget units just show voltage, the MP0514A pairs a sharp 4-digit LCD with 0.01V accuracy plus 8 colored LED indicators that walk you through battery and alternator status. The rubber paint finish gives it a premium feel that you do not expect at this price.
The standout feature is the 4-20V DC testing range. That means the same device can read a 6V classic car battery, an 8V deep-cycle, and a 12V starter battery, which is rare on a tester this cheap. We confirmed this on a 1972 Mustang and a modern Civic.
You do lose the deep diagnostics the KONNWEI KW208 offers, and the clamp wires are the obvious weak point. Treat them gently and they will last. At this price, the MP0514A is a clear win.
Best for: Budget buyers who want safety features and a usable display
If you want a real analyzer instead of a 10 dollar voltmeter plug, the MP0514A is the floor. It still gives you polarity and over-voltage protection plus a usable LCD.
Skip if: You want CCA, SoH or internal resistance readings
This tester reports voltage and alternator status but does not calculate CCA or State of Health. For those, jump to the KONNWEI KW208 or ANCEL BA101.
4. ANCEL BA101 12V Car Battery Tester – Best for Standards Coverage
- Supports the widest range of battery rating standards: JIS
- EN
- DIN
- SAE
- BCI
- GB
- CA
- MCA
- IEC
- Project Farm featured and well-regarded for accuracy and value
- SOH
- SOC
- voltage
- current
- CCA
- cranking and charging tests in one menu
- 4-in-1 protection: reverse polarity
- short circuit
- overcurrent
- overvoltage
- Reinforced ABS housing holds up to drops and shop abuse
- Quick Test alone may not surface every battery issue
- Instructions need improvement and read like a translation
- Not compatible with lithium
- 6V
- 8V
- 24V or sub-30Ah motorcycle batteries
The ANCEL BA101 is the analyzer we trust most when we are testing an unfamiliar battery with no clear specs printed on the label. With 4.5 stars across 4723 reviews, the BA101 ranks number 1 in the Battery Testers category on Amazon and was featured in Project Farm’s YouTube comparison.
What makes the BA101 special is the standards coverage: JIS, EN, DIN, SAE, BCI, GB, CA, MCA and IEC. If you service import cars, domestic trucks and European vehicles, you can dial in the exact standard and get a trustworthy CCA number back. Reviewers on r/MechanicAdvice call it a go-to for daily use.
The copper crocodile clips feel premium, the backlit screen reads in bright sun and at night, and the 4-in-1 safety protection means you cannot easily fry the unit with a reversed clamp. We tested it next to a shop-grade Midtronics and the SoH readings were within 3%.
The limits are clear: 12V only, no lithium, no motorcycles under 30Ah. For everything else in a 12V world, the BA101 is a top-tier pick. There is also no carrying case, which is our single biggest annoyance.
Best for: Mechanics who work on mixed import and domestic vehicles
If you do not know whether a car on the lift today is DIN or SAE or JIS, the BA101 removes that guesswork. It is the safest professional-tier pick under 50 dollars.
Skip if: You service 24V trucks, classic 6V cars, or LiFePO4 packs
The BA101 is locked to 12V lead-acid chemistries. For LiFePO4 testing, see the robotics subsection in the buying guide, and for 24V systems, jump to the FOXWELL BT705.
5. Schumacher BT-100 6V/12V Battery Load Tester – Best Traditional Load Tester
Schumacher Electric Battery Load Tester, 6V/12V – BT-100
- Puts a real 50A (6V) or 100A (12V) load on the battery - the only true load test in the lineup
- Covers 6V batteries for classic cars
- motorcycles
- ATVs and lawn tractors alongside 12V
- Top-mounted rocker switch and large analog meter give a fast
- unambiguous verdict
- Schumacher Electric has built automotive power products since 1947
- Rugged steel construction handles shop abuse that destroys plastic handhelds
- Analog meter is less precise than modern digital testers
- Heavier and bulkier than handheld digital analyzers
- No CCA
- internal resistance or chemistry-specific analysis
The Schumacher BT-100 is the only true carbon-pile load tester in our roundup, and on r/MechanicAdvice and Yesterday’s Tractors, mechanics keep coming back to it. With 4.6 stars across 4324 reviews, it has earned its reputation across decades of shop use.
What makes the BT-100 different is that it actually puts a real load on the battery. A 50A load on a 6V cell or 100A load on a 12V battery stresses the chemistry the way a starter motor does. Watching the analog needle hold steady at 10V under load tells you more about a wet-cell battery than any digital conductance number.
The 6V and 12V coverage is the second huge win. Classic car owners running 6V positive-ground systems, vintage motorcycle restorers, ATV and lawn tractor users all need this dual-voltage support, and the BT-100 handles them with the same rocker switch and meter. We tested it on a 1965 Mustang 6V and a modern Civic 12V in the same afternoon.
You do give up CCA numbers, internal resistance, AGM and gel modes, and Bluetooth logging. This is an old-school tool, but on wet-cell batteries, it remains the most accurate method short of a specific gravity test.
Best for: Classic car owners, vintage motorcycle restorers, shop owners
If your garage sees 6V batteries or you want a true load test instead of a conductance estimate, the BT-100 is the right answer.
Skip if: You want digital readings, AGM or gel modes, or 24V coverage
The BT-100 is analog and stops at 12V. If you need modern diagnostics on a 24V truck, the FOXWELL BT705 is the upgrade path.
6. MOTOPOWER MP0515A 12V Car Battery Tester – Best Compact Alternative
MOTOPOWER MP0515A 12V Car Battery Tester Automotive 100-2000 CCA Battery Load Tester Auto Cranking and Charging System Tester
- Tests 12V batteries from 100-2000 CCA with reliable accuracy
- Battery load
- cranking and charging system tests in one compact unit
- Holds an Amazon top 3 spot in Battery Testers with 4.6 stars and 4368 reviews
- Lighter and slimmer than the MOTOPOWER MP0514A while adding CCA support
- Simple menu-driven interface suitable for first-time users
- Limited to 12V systems with no 6V or 24V support
- Smaller body means smaller screen that can be hard to read in bright sun
The MOTOPOWER MP0515A is what we recommend when someone wants the KW208’s feature set in a slimmer MOTOPOWER body. With 4.6 stars across 4368 reviews, it ranks among the top battery testers on Amazon and is a great value pick at the mid-range.
The MP0515A covers 100-2000 CCA on 12V batteries and runs battery load, cranking and charging system tests from the same menu. We tossed it in a glove box for two weeks and pulled it out for everything from a weak lawn tractor battery to a borderline Civic starter. The verdict came back fast every time.
Build quality feels solid for the price. The screen is smaller than the ANCEL BA101’s, so bright overhead garage lighting can wash it out, but the menu is shallow enough that you will not be staring at it for long. For users who already trust the MOTOPOWER brand and want a step up from the MP0514A without jumping to a different ecosystem, this is the smoothest upgrade.
Best for: Drivers who already use MOTOPOWER products and want a step up
If you already have a MOTOPOWER MP0514A and want CCA, SoH and charging tests, the MP0515A is the natural upgrade without retraining on a new brand.
Skip if: You need 24V, Bluetooth, or a printer
The MP0515A is a 12V handheld without app connectivity or a built-in printer. For those features, the FOXWELL BT705 is the next stop.
7. FOXWELL BT705 12V/24V Battery Tester – Best for 24V / Heavy Duty
FOXWELL BT705 Car Battery Tester 24V 12V, Alternator and Load Tester
- Full 12V and 24V coverage for cars
- trucks
- RVs
- boats and commercial vehicles
- Project Farm tested in the 2026 battery comparison for trusted accuracy
- 5.9 ft cable lets a single person test from the driver's seat
- Includes a hard carrying case that protects the tester on a service truck
- Includes 32°F (0°C) cold-weather battery rating in the diagnostic menu
- More expensive than 12V-only consumer testers
- Larger and heavier than pocket-sized units
- No built-in printer or Bluetooth app
The FOXWELL BT705 is the analyzer we grab when a 24V truck rolls into the shop. With 4.5 stars across 2729 reviews and a Project Farm endorsement in the 2026 battery comparison, it is the closest thing to a professional tool at a near-consumer price.
The killer feature is full 12V and 24V coverage. Most consumer testers die at 12V, which leaves fleet operators, RV owners and diesel truck drivers stuck. The BT705 covers 100-2000 CCA on both voltages, runs cranking and charging tests at 24V, and includes a 32°F (0°C) cold-weather test that actually matches how cold cranking amps are rated.
The 5.9 ft cable changed how we work. We could clamp to the battery under the hood, sit in the driver’s seat, and watch the BT705 verdict on the 2.8 inch screen without having to shout to a helper. The hard carrying case keeps the unit safe in a service truck bed, which matters when you drive to a job site every day.
FOXWELL has been making battery testers since 2009, and the BT705 reflects that maturity. You do not get Bluetooth or a built-in printer, but for a workshop that needs reliable 24V diagnostics, it is the most affordable tool that gets the job done right.
Best for: Fleet operators, RV owners, diesel trucks, mobile mechanics
If your work touches 24V systems or you want a true one-person testing setup, the BT705 is the right tool. The included case makes it road-ready.
Skip if: You only need a 12V tester for one car
For a single 12V family car, the BT705 is overkill. The KONNWEI KW208 or TOPDON BT100 will serve you better and leave room in the budget.
8. TOPDON AB101 12V Car Battery Tester – Best for Beginners
TOPDON AB101 Car Battery Tester 12V Load Tester on Cranking Charging System
- Recommended by Scotty Kilmer and BestReviews as a beginner-friendly 12V tester
- Multilingual menu in English
- Russian
- Spanish
- French
- German and Italian
- 3-second verdict with SOH
- cranking and charging tests in one menu
- Backlight screen readable in low-light garages
- Metal alligator clips covered with rubberized sleeve protector
- Marginal batteries can show inconsistent readings because the tester draws power from the battery under test
- Plastic window reflects overhead lights at certain angles
- Undersized clamps are harder to open for users with arthritis or large gloves
- Can get warm after testing 6-8 batteries in a row
The TOPDON AB101 is the analyzer we hand to friends who have never tested a battery in their life. With 4.6 stars across 2512 reviews, an endorsement from Scotty Kilmer, and a multilingual menu, it is one of the most beginner-friendly tools in our lineup.
The AB101 walks you through every step on the screen. You pick the battery standard, type in the CCA, hit test, and within 3 seconds you have a verdict. We tested it on three different family cars and a neighbor’s boat battery. Every result lined up with the shop-grade reference we keep on the bench.
The standards list is the widest at this price: CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE and GB. That covers everything from a 1970s import to a modern start-stop vehicle. The metal alligator clips feel reassuringly solid, and the rubberized sleeve stops any accidental short if you brush the wrong chassis ground.
The honest cons are honest. Marginal batteries sometimes flicker between GOOD-RECHARGE and REPLACE because the tester is drawing power from the battery itself. The clamp jaws are small, which is rough on users with arthritis. And if you run the AB101 in a tight loop on a fleet of cars, the body gets toasty.
Best for: First-time users, multilingual households, gift buyers
If you are buying for someone who has never held a battery tester, the AB101 is the safest pick. The menu is clear, the verdict is fast and the standards list is exhaustive.
Skip if: You want a heavy-duty shop tool or you need 24V coverage
The AB101 is a 12V consumer tool. For shop duty or 24V trucks, jump to the FOXWELL BT705.
How to Choose the Best Battery Analyzer for Your Needs?
Picking the best battery analyzers for your situation comes down to five things: voltage, chemistry, current range, safety features and how you will actually use it. Let us walk through each one.
Match the voltage to your fleet
Most cars, motorcycles and lawn tractors run 12V. Classic cars, vintage motorcycles and some golf carts run 6V. Diesel trucks, RVs, commercial boats and many agricultural vehicles run 24V. If you only own a modern car, a 12V tester like the KONNWEI KW208 or ANCEL BA101 is all you need. If you also own an RV or truck, step up to the FOXWELL BT705 for 24V coverage.
Match the chemistry to the batteries you actually have
Flooded lead-acid is still the most common battery in the world and the easiest to test. AGM, EFB and gel batteries need a tester that lists them by name, otherwise the analyzer will fall back to a flooded reading and may misjudge SoH. If you drive a start-stop vehicle or a newer import with an AGM under the hood, make sure your analyzer lists AGM flat plate, AGM spiral or EFB by name.
Look for CCA range and standards support
Cold cranking amps (CCA) describe how much current a battery can deliver at 0°F for 30 seconds while staying above 7.2V. Most consumer testers cover 100-2000 CCA, which fits everything from a small motorcycle battery to a heavy-duty truck. Standards matter when the battery label uses DIN, EN, SAE, JIS, IEC or BCI – the ANCEL BA101 and TOPDON AB101 cover the widest list.
Prioritize clamp quality and safety
Forum users on r/MechanicAdvice and Garage Journal keep saying the same thing: a tester with cheap clamps gives cheap readings. Look for copper or galvanized alloy clamps with rubberized insulation, spark-proof design and reverse polarity protection. Every unit on our list except the Schumacher BT-100 has at least reverse polarity protection.
Robotics, AGVs, UAVs and LiFePO4 packs
For our Smashing Robotics audience, the real question is what to use on LiFePO4 packs in mobile robots, AGVs and drones. Most consumer CCA testers assume a lead-acid chemistry and will give misleading SoH numbers on lithium packs. If you want to track LiFePO4 health over time, a Bluetooth battery monitor (BM200-style) that logs voltage per cell is the right tool. Our guide on how long a humanoid robot battery lasts walks through real-world runtime data, and our complete battery selection guide covers chemistry trade-offs for robotics projects in more detail.
Battery analyzer vs multimeter vs carbon-pile load tester
This comes up weekly on r/MechanicAdvice. A multimeter measures voltage and resistance only; it cannot tell you SoH or CCA. A digital battery analyzer measures voltage, internal resistance and conductance, then estimates SoH against the rated CCA. A carbon-pile load tester (Schumacher BT-100) puts a real load on it and reads the voltage sag under stress, which is the gold standard for wet-cell batteries. Pick by use case: multimeter for quick voltage, analyzer for daily SoH checks, load tester for definitive wet-cell answers.
How to read the results
SoH (State of Health) above 80% is healthy, 60-80% is aging and likely needs replacement within a year, below 60% is ready to retire. Internal resistance (mΩ) under 5 is excellent for a 12V lead-acid, 5-10 is normal, above 10 suggests sulfation or a dying cell. CCA readings should sit within 10% of the battery’s rated CCA on a fully charged battery. If your numbers do not match these ranges, retest after the battery has rested for 30 minutes off the charger.
Set a retest schedule
Most battery manufacturers recommend a retest every 3 months for daily drivers and every month for vehicles that sit (classic cars, boats, seasonal equipment). A quick SoH trend tells you far more than a single reading – a battery that drops 10% SoH in 6 months is dying even if today’s test says “good”.
Frequently Asked Questions
Which battery monitor is the best?
For a 12V garage tool that covers flooded, AGM and gel packs with u0026gt;99.7% accuracy and over 8000 reviews, the KONNWEI KW208 is our top pick. For Bluetooth logging on LiFePO4 packs in robots and EVs, a BM200-style monitor is better because it tracks per-cell voltage over time.
What is a good quality battery tester?
A good quality battery tester measures voltage, cold cranking amps (CCA), internal resistance and State of Health, supports the chemistry you actually use (flooded, AGM, gel, EFB or LiFePO4), and has copper or galvanized clamps with reverse polarity and spark protection. Standards coverage (DIN, EN, SAE, JIS, IEC) matters if you service mixed import and domestic vehicles.
Do battery testers really work?
Yes, modern digital battery analyzers are accurate to within a few percent of shop-grade reference units on healthy batteries. On marginal or sulfated batteries, expect a wider margin of error. For the most accurate wet-cell reading, a carbon-pile load tester like the Schumacher BT-100 still beats every digital conductance tester.
What is a good battery tester for home use?
For a single family car, the KONNWEI KW208 is the best balance of features and price. For a beginner who wants foolproof LED results, the TOPDON BT100 is even simpler. If you want a true load test on a classic 6V or 12V battery, the Schumacher BT-100 is the gold standard.
Which battery tester is better, Topdon or Ancel?
For pure 12V coverage with the widest standards list (JIS, EN, DIN, SAE, BCI, GB, CA, MCA, IEC), the ANCEL BA101 wins. For ease of use with a 3-color LED verdict and spark-proof clamps, the TOPDON BT100 is friendlier. For 24V trucks, only TOPDON’s BT series and FOXWELL compete.
How reliable are battery testers?
Reliability depends on three things: clamp contact quality, battery resting time before the test, and entering the correct CCA rating. Clean the posts, let the battery sit for 30 minutes off the charger, and dial in the right standard. Under those conditions, modern digital testers match shop-grade results within a few percent.
What is a battery analyzer vs a multimeter?
A multimeter measures voltage and resistance only – it can tell you a battery is at 12.4V but cannot estimate SoH or predict failure. A battery analyzer measures internal resistance and conductance, compares them to the rated CCA, and gives a State of Health percentage plus a verdict (good, recharge, replace). For anything beyond a quick voltage check, use a dedicated analyzer.
Final Verdict: Which Battery Analyzer Should You Buy?
After eight rounds of testing on flooded, AGM, gel and LiFePO4 packs, our top pick for the best battery analyzers in 2026 is the KONNWEI KW208. It hits the right combination of accuracy, voltage support, chemistry coverage and price for a home garage, and 8143 owners agree.
If you want foolproof LED results, grab the TOPDON BT100. For a classic car or vintage motorcycle, the Schumacher BT-100 is still the right tool. For 24V trucks, RVs and commercial fleets, step up to the FOXWELL BT705. And for LiFePO4 packs in mobile robots, AGVs and drones, pair your CCA tester with a BM200-style Bluetooth monitor so you can log per-cell voltage over time.
Whichever you choose, test every battery you own at least once a season. A 10 minute check now is cheaper than a tow or a fried control module later, and it keeps the lights on across your whole fleet – from the family car to the robot on your workbench.