Clore Solar 1874 500 Amp
#3 in Load testersFull review
A proper adjustable carbon-pile tester for car and light-truck batteries, from a long-standing shop brand.
Amazon $131.88$131.88
Carbon pileup to 1,000 CCA
3.1/5
A classic, low-cost load tester for checking 6 V and 12 V batteries under a real load.
- Fixed loadType
- 6/12 VSystems
- Starter + chargingSystem tests
Check price at Amazon$54.99
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Real 100 A load shows how a battery holds voltage, not just an estimate
- Also checks the charging system and starter draw
Cons
- Rated in CA up to 1,000 CA, with no CCA figure
- Listing publishes no warranty term
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | BT-100 |
|---|---|
| Testing | |
| Type | Fixed load |
| Battery voltages | 6/12 V |
| System voltages | 6/12 V |
| Load current | 100 A |
| Starter test | Yes |
| Charging system test | Yes |
| Features | |
| Display | Analog |
Alternatives in this type
TOPDC BT-501 500 Amp
#4 in Load testersFull review
An adjustable 500 A carbon-pile tester with a built-in test timer, for car, truck and farm batteries.
Amazon $135.99$135.99
Carbon pileup to 1,000 CCA12 V
OTC 3181 130 Amp
#6 in Load testersFull review
A rugged fixed-load tester for quick pass or fail checks on 6 V and 12 V batteries, including side-post ones.
Amazon $89.37$89.37
Fixed load
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