# TOPDON BC100 12V Battery Tester

The TOPDON BC100 battery tester checks 12V lead-acid batteries, cranking voltage and charging-system voltage. Its compact LCD unit also claims playback of saved test results, while its charging-system check does not charge the battery.

- [Original product page](https://best-deals.pro/product/topdon-bc100-12v-battery-tester)
- [View offer](https://best-deals.pro/visit/topdon-bc100-12v-battery-tester)
- Market: US
- Language: en-US
- Currency: USD
- Brand: TOPDON
- Model: BC100
- Category: Cars & Motorcycles > Vehicle Diagnostic Equipment
- Price: 47.18 USD
- Previous price: 59.99 USD
- Discount: 21%
- Price checked: 2026-11-14T05:36:49.898Z
- Rating: 4.6 / 5
- Reviews: 73

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing describes a three-part check of battery condition, cranking voltage and alternator or charging-system voltage.
- Claims support 12V lead-acid battery types including flooded, AGM, GEL and EFB, with a stated 100-2000 CCA range.
- The LCD menu and data playback are intended to help view current results and revisit stored tests.
- A compact listed footprint and claimed 31.5-inch test cables may suit storage in a tool bag and access around an engine bay.

## Pros

- Combines battery-condition, cranking-voltage and charging-system checks in one tester.
- Supports several common 12V lead-acid battery types according to the listing.
- Playback of previous test results may help compare readings over time.

## Cons

- The charging-system test checks voltage but does not recharge the battery.
- The stated scope is 12V lead-acid batteries, so this is not presented as a universal tester for other battery voltages or chemistries.

## Specifications

### Identity
- Brand: TOPDON
- Model: BC100
### Display
- Screen technology listed: LCD
- LCD resolution: 128x64
### Compatibility and testing
- Minimum operating voltage: 12 volts
- Battery chemistry support claimed: Regular Flooded, AGM Flat Plate, AGM Spiral, GEL, and EFB
- CCA testing range claimed: 100-2000 CCA
- Checks claimed: battery condition, cranking voltage, and alternator/charging-system voltage
- Compatible vehicles listed: Cars, Trucks, Motorcycles, Boats, ATVs, SUVs, Golf Carts
### Power and battery
- Power configuration: Battery Powered
### Dimensions and installation
- Dimensions listed: 5.3 x 3 x 1 inches
- Weight listed: 9 ounces
- Test cable length claimed: 31.5-inch cables
### Other listed details
- Color: Blue
- Upper temperature rating: 140 °F
- Specification met: CE, FCC, RoHS, UKCA

## Before you buy

- Listing details are inconsistent: the dimensions are given as 5.3 x 3 x 1 inches in specifications and 5.37 x 2.97 x 0.89 inches in feature text. Confirm the version and fit if exact dimensions matter. The listing also describes this as a load tester while specifying conductivity testing, so the testing method is not clearly reconciled. Turn off the vehicle ignition before testing and follow the manual's safety guidance.

## In the box

- TOPDON BC100 battery tester (Included)

## A good fit for

- Drivers or vehicle owners who want a portable way to check a supported 12V lead-acid battery and charging voltage.
- Users who want to review stored readings when monitoring battery condition or comparing results.

## Less suited to

- Anyone who needs a battery charger, since the charging-system check does not charge the battery.
- Buyers who need a tester for battery voltages or chemistries beyond the listed 12V lead-acid types.

## Customer feedback

Customer feedback describes the tester as convenient and easy to use, and says it helps users assess battery health. That aligns with the listed LCD interface and battery-condition check, though feedback does not independently confirm the stated testing range or accuracy. The ratings are mostly five-star but include a smaller one-star portion, so experiences are not uniformly positive.
- Positive themes: Customer feedback praises ease of use and convenience.
- Positive themes: The feedback summary says customers find it useful for assessing battery health.

## Frequently asked questions

### What checks does the TOPDON BC100 perform?
The listing says it checks battery condition, cranking voltage and alternator or charging-system voltage. The charging-system check does not charge the battery.
### Which batteries does it support?
The listing specifies 12V lead-acid batteries, including regular flooded, AGM flat plate, AGM spiral, GEL and EFB, with a stated range of 100-2000 CCA.
### Does the BC100 store earlier results?
The listing claims a data-playback function for storing and reviewing previous test results.
### Does it work with 24V batteries?
The listing specifies 12V batteries and does not establish 24V compatibility. Buyers needing 24V testing should confirm that capability before purchase.

## Alternative options

- [TOPDON BT200 Car Battery Tester, 12V/24V, 100-2000 CCA Load Tester \| Battery and Alternator Tester for Cranking and Charging Systems, Auto Battery Analyzer for Cars, Trucks, SUVs, ATVs and Boats](https://best-deals.pro/visit/topdon-bc100-12v-battery-tester)
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## Add-ons

- [khanka Hard Case for TOPDON BT100 12V Car Battery Load Tester,Black \| EVA Hard Shell, Mesh Pocket Accessory Storage, Workshop Tool Storage, Elastic Strap Fixation, Protective Case Only](https://best-deals.pro/visit/topdon-bc100-12v-battery-tester)

## Images

![TOPDON BC100 12V Battery Tester — 1](https://best-deals.pro/i/T66DenKM5D-cx9WBBhCn0u8QLlVjnz6RFhiZNaIzVoeqY_wxtnZ1bMM1s1HZRfMjz0FzJwdnZh4Oq88-lsSX2zrS3H8AhsatwHVhV2fpGfCPolJRI0zU.jpg)

![TOPDON BC100 12V Battery Tester — 2](https://best-deals.pro/i/fYuLvbeKVeD54XKFqmmrn3NDUKYxVcUSuQ7Uyr6rhV-v8eTI13fU0fYclvLxLINpfjxSKzCcr1PVuHhNgd_bpdMPwuygeRpXdJ_H_hvXQiafxRm5W05C.jpg)

![TOPDON BC100 12V Battery Tester — 3](https://best-deals.pro/i/FPR1fF7mQkGv5tBo2OLMeUhZp065fX-TX4rL6c9emKM1qj5kHaDJ87zJB2yCultIOMNx1mAPXcNDG9FVOGPxUUh6S83DLLvF2gGW3dJ60xxGpWXA4NW_.jpg)

![TOPDON BC100 12V Battery Tester — 4](https://best-deals.pro/i/RYqGpPUxng3ZkvgjBxewf6_O7ay-mzpXIDPpaZUx_FFUb8xsMg_moy3GLdCZjWbovio7ET4qcyc7eR14YGT0yqivsj9myE7J1ARvqQp8K6G1gZIpmriD.jpg)

![TOPDON BC100 12V Battery Tester — 5](https://best-deals.pro/i/WoUHb0ngbrR8s96fs7vpbSS444Zv9kldzLjYEkzjVKd63QKPTSU9UCOXOLgbLue6SrBWfp-nnDLoW-xfI1t59Dvc1zH3GTzAgjxeonXRBLN5MthT3Duo.jpg)

![TOPDON BC100 12V Battery Tester — 6](https://best-deals.pro/i/STlQeL6RgyB088OPZUF7-PPwLH6Rey1bwDp29DIpwPAlpdEVvAmGBJqxuK9Q2ZDfW-hKiQNiIIhgZ0KcYJ1jNCyddNrvNsKwXVnTNiGxALB2sr27iU9g.jpg)

![TOPDON BC100 12V Battery Tester — 7](https://best-deals.pro/i/YzXmDEgzBZ4dxY6Cr912BapuUrNcM_R6lpcdqj04W0e6pKABfmbZ_UlwQleq3qyqvGCpqlzbWJOwkVBsejWHVF-Jc6amcek91Pisi-8EGOF6pdUDbRxk.jpg)