Konnwei KW700
#1 in With printerFull review
The lowest-priced tester here with a printer, and it handles lithium and 24 V batteries too.
Amazon $59.99$59.99
Conductance (digital)10-2,000 CCA12/24 V
A battery tester tells you whether a slow start is the battery, the starter or the alternator before you pay for a part you don’t need. These rankings cover handheld testers for 12 V starting batteries from $50 up, from Topdon, Ancel, Foxwell, Konnwei, Autel, Midtronics, Clore (Solar), Schumacher, OTC and others. Plain voltmeters, multimeters, wired-in battery monitors and chargers with a test mode are left out.
Type is the first choice. A conductance (digital) tester sends a small signal through the battery and estimates its cold cranking amps and health in a few seconds. It draws almost no current, works on a partly charged battery and most also check the starter and the charging system. A load tester puts a real load on the battery, about 100 A for a fixed-load tester or an adjustable 500 to 1,000 A for a carbon pile, and shows how far the voltage sags. A load test needs a charged battery and gets hot, but it is the classic shop test and shows a weak battery the same way a cold start does.
Range is the second. Check that the tester covers your battery’s CCA rating and its type. Most digital testers read flooded, AGM, EFB and gel batteries up to 2,000 CCA; only a few test lithium. For a truck or equipment with two batteries in series, look for 24 V system tests.
A printer matters only if you hand results to someone else. Shops and fleets use one for a paper record; at home, a stored result or a phone report does the same job.
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Top Picks
Topdon BT100
A low-cost 12 V tester for a car owner who wants to check a battery, starter and alternator at home.
Amazon $53.99$53.99
Conductance (digital)100-2,000 CCA12 V
Clore Solar 1876 1000 Amp
#1 in Load testersFull review
A full-size carbon-pile tester for shops and fleets that load-test heavy-duty and 24 V batteries.
Amazon $284.84$284.84
Carbon pileup to 2,000 CCA6/12/24 V
Shop by Type
Digital testers
9 rankedHandheld conductance testers that read a battery's health and cold cranking amps in seconds, with no built-in printer.
Top rated: Ancel BA101 Plus $69.99
With printer
8 rankedConductance testers with a built-in thermal printer, for shops and fleets that hand over or file a paper result.
Top rated: Konnwei KW700 $59.99
Load testers
7 rankedFixed-load and carbon-pile testers that put a real load on the battery and read the voltage it holds.
Top rated: Clore Solar 1876 1000 Amp $284.84
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Best Digital Car Battery Testers
- Ancel BA101 Plus#1 of 9Full review
A good fit for a garage with motorcycles, mowers and cars, since it tests 6 V and 12 V batteries and keeps a long test history.
Amazon $69.99$69.99Conductance (digital)20-2,000 CCA6/12 V - Autel MaxiBAS BT506#2 of 9Full review
A good add-on for a shop that already uses Autel wireless scan tools, or anyone who wants test reports on a phone.
Amazon $175$175Conductance (digital)100-2,000 CCA12/24 V - Topdon BT200#3 of 9Full review
A step up from the BT100 for anyone who also works on 24 V trucks or equipment, with a sunlight-readable color screen.
Amazon $77.99$77.99Conductance (digital)100-2,000 CCA12/24 V - Foxwell BT705#4 of 9Full review
A sturdy 12 V and 24 V tester with a cable long enough to run the starter test alone, and a longer warranty than most.
Amazon $106.99$106.99Conductance (digital)100-2,000 CCA12/24 V - Topdon BT100#5 of 9Full review
A low-cost 12 V tester for a car owner who wants to check a battery, starter and alternator at home.
Amazon $53.99$53.99Conductance (digital)100-2,000 CCA12 V
Best Car Battery Testers With a Printer
- Konnwei KW700#1 of 8Full review
The lowest-priced tester here with a printer, and it handles lithium and 24 V batteries too.
Amazon $59.99$59.99Conductance (digital)10-2,000 CCA12/24 V - Topdon BT300P#2 of 8Full review
The cheapest way to get printed battery results, for a small shop or a mobile mechanic.
Amazon $99.99$99.99Conductance (digital)100-2,000 CCA12/24 V - Topdon BT600#3 of 8Full review
A shop-friendly tester with a big screen and a printer, for 12 V batteries and 24 V truck systems.
Amazon $169.99$169.99Conductance (digital)100-2,000 CCA12/24 V - Ancel BST600#4 of 8Full review
A printer tester for shops and fleets that work on 24 V batteries and want a dated paper record for each job.
Amazon $119.99$119.99Conductance (digital)100-2,000 CCA12/24 V - Foxwell BT780#5 of 8Full review
A shop tester that keeps working on a nearly flat battery and prints branded reports.
Amazon $219.99$219.99Conductance (digital)100-2,000 CCA12/24 V
Best Battery Load Testers
- Clore Solar 1876 1000 Amp#1 of 7Full review
A full-size carbon-pile tester for shops and fleets that load-test heavy-duty and 24 V batteries.
Amazon $284.84$284.84Carbon pileup to 2,000 CCA6/12/24 V - FJC 45115 500 Amp#2 of 7Full review
A plain 500 A carbon-pile tester for 12 V batteries up to 1,000 CCA at a lower price than the Solar 1874.
Amazon $115.20$115.20Carbon pileup to 1,000 CCA- - Clore Solar 1874 500 Amp#3 of 7Full review
A proper adjustable carbon-pile tester for car and light-truck batteries, from a long-standing shop brand.
Amazon $131.88$131.88Carbon pileup to 1,000 CCA- - TOPDC BT-501 500 Amp#4 of 7Full review
An adjustable 500 A carbon-pile tester with a built-in test timer, for car, truck and farm batteries.
Amazon $135.99$135.99Carbon pileup to 1,000 CCA12 V - Schumacher BT-100#5 of 7Full review
A classic, low-cost load tester for checking 6 V and 12 V batteries under a real load.
Amazon $54.99$54.99Fixed load-6/12 V
How We Rank
Each tester is ranked against others of the same type, and scored on its price, the batteries it covers, the starter and charging tests it runs, its features (or its load current, for load testers) and its warranty.
| Factor | Measures | Weight |
|---|---|---|
| Price | current price | 25% |
| Battery coverage | highest CCA rating tested, plus 6 V batteries and 24 V systems | 25% |
| System tests | starter, charging system and ripple tests | 20% |
| Features or load | printer, screen, lithium, app report, memory, own battery and cable length; load current for load testers | 20% |
| Warranty | warranty length | 10% |
How we rank explains each factor in full.