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
The Clore Solar 1874 500 Amp is the better car battery tester overall, rated 3.2 to 3.1. The Clore Solar 1874 500 Amp leads on features or load. The Schumacher BT-100 wins on price. The Schumacher BT-100 costs $76.89 less ($54.99 vs $131.88).
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.
Schumacher BT-100
#5 in Load testersFull review
A classic, low-cost load tester for checking 6 V and 12 V batteries under a real load.
Amazon $54.99$54.99
Which should you buy?
- Choose the Clore Solar 1874 500 Amp for features or load (500 A load vs 100 A load).
- Choose the Schumacher BT-100 for price ($54.99 vs $131.88).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every load testers car battery tester; a clear win is highlighted. How we rank explains each one.
| Factor weight | Clore Solar 1874 500 Amp | Schumacher BT-100 |
|---|---|---|
| Overall rating | 3.2/5 | 3.1/5 |
| Price 25% | 58 $131.88 | 96 $54.99 |
| Battery coverage 25% | 17 up to 1,000 CCA | 20 CCA range not published, scored as the bottom of the scale, 6 V batteries |
| System tests 20% | 80 tests the starter, charging system | 80 tests the starter, charging system |
| Features or load 20% | 70 500 A load | 0 100 A load |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Clore Solar 1874 500 Amp | Schumacher BT-100 | |
|---|---|---|
| Testing | ||
| Type | Carbon pile | Fixed load |
| Battery voltages | - | 6/12 V |
| System voltages | - | 6/12 V |
| Rating range | up to 1,000 CCA | - |
| Load current | 500 A | 100 A |
| Starter test | Yes | Yes |
| Charging system test | Yes | Yes |
| Features | ||
| Display | Analog | Analog |