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Product guide

ANCEL BA101 12V Car Battery Tester

The ANCEL BA101 is a 12V battery tester for checking battery condition, cranking and charging systems. It is described for 12V lead-acid batteries over 30Ah, including flooded, AGM, GEL and EFB types, and takes its power from the battery under test.

At a glance

Provides battery state-of-health and state-of-charge information, along with voltage, current and CCA readings.
Includes battery, cranking and charging-system checks, according to the listing.
The tester draws power from the vehicle battery, so it does not need its own internal battery for testing.
The listing describes an LCD with adjustable contrast and a backlight.

Price

£33.99Save 15%

Reference price: ~~£39.99~~

Price checked: 12 Nov 2026

View offer

Often bought together

ANCEL BA101 Car Battery Tester 12V Auto 100-2000 CCA Battery Load Tester | Automotive Alternator Battery Analyzer Digital on

Pros and cons

Pros

Combines battery-condition checks with cranking and charging-system diagnostics in one handheld tester.
The stated support for several lead-acid battery types and rating standards offers flexibility across compatible 12V vehicles.
Can be used with the battery in the vehicle or removed, according to the listing.

Cons

It is limited to 12V lead-acid batteries and is not intended for lithium, 6V or 24V systems.
Testing depends on the vehicle battery for power, so the tester is not a standalone battery-powered unit.

Technical specifications

12 specifications

Identity and display
Brand	ANCEL
Model	BA101
Screen technology listed	LCD

Power and battery
Power configuration	Battery Powered

Dimensions and weight
Dimensions listed	24.1 x 17.8 x 5.1 centimetres
Weight listed	5 Ounces

Compatibility and testing
Supported battery voltage	12V
Listed CCA range	100-2000 CCA
Battery capacity range	30–200Ah
Battery chemistries	Flooded, AGM, GEL, and EFB
Stated battery standards	Cca, Bci, Ca, Mca, Jis, Din, Iec, En, Sae, and Gb
Listed compatible vehicles	car, truck, boat, RV, marine vehicle, ATV, lawnmower, golf cart, motorbike

What to know before buying

For useful readings, select the correct battery type, standard and rating, connect the clamps securely to clean terminals, and enter the temperature as shown on the battery label. The listing recommends testing after the engine has been off for about two hours and with unnecessary electrical loads switched off.

Listing details to confirm

The listing details are inconsistent or unconfirmed: the title gives a 100–2000 CCA range, while other copy specifies a 30–200Ah battery range, and the details section labels the power source as battery-powered while the usage description says it draws power from the vehicle battery. Confirm the applicable rating range and power arrangement for the selected listing.

What’s in the box

Included

BA101 tester

Who is it for?

A good fit for

Drivers or DIY users who want battery, starter-cranking and alternator-charging checks for compatible 12V lead-acid vehicle batteries.
Owners of cars, trucks, boats, RVs, ATVs, lawnmowers, golf carts or motorbikes whose batteries meet the stated compatibility limits.

Less suited to

Anyone needing to test lithium, 6V or 24V batteries.
Motorcycle owners with batteries below 30Ah, or buyers who need a tester with its own built-in power source.

ANCEL BA101 12V Car Battery Tester · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 4,538 ratings

5 stars75%75%
4 stars13%13%
3 stars5%5%
2 stars2%2%
1 star5%5%

Customer feedback describes the tester as accurate and functional, and some customers say it provides useful battery-condition information or helped them save money. Battery life receives mixed feedback. For buyers seeking routine checks on compatible 12V lead-acid batteries, the reported usefulness is relevant, but the mixed battery-life comments are worth bearing in mind. These are customer impressions, not verification of measurement accuracy.

Positive themes

Customers describe the tester as accurate and functional.
Customers report useful battery-condition information and positive value impressions.

Mixed feedback

Customer opinions about battery life are mixed.

Frequently asked questions

Which batteries can the BA101 test?

The listing describes support for 12V lead-acid batteries over 30Ah, including flooded, AGM, GEL and EFB types. It says the tester is not for lithium, 6V or 24V batteries.

Can it check the starter and charging system as well as the battery?

Yes. The listing describes battery-condition, cranking and charging-system checks, including alternator charging information.

Does the BA101 have an internal battery?

The listing says it draws power from the vehicle's 12V battery during testing. Its details also label the power source as battery-powered, so confirm the arrangement on the selected listing.

Can I test a battery without removing it from the vehicle?

The listing describes both in-vehicle and out-of-vehicle modes, so removal is not required for an in-vehicle check.