DEWALT
DXAEC100 30A Battery Charger, Engine Starter & Maintainer
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Best Car Battery Chargers · head-to-head
A sourced, side-by-side comparison. DXAEC100 30A Battery Charger, Engine Starter & Maintainer is cheaper at —. Every spec and price links to its source.
DEWALT
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Ampeak
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | — | — |
| Brand | DEWALT | Ampeak |
| Released | — | — |
| Max charge amps | 30 | 8 |
| Voltage support (V) | 12 | 6, 12 |
| Battery chemistry | WET, GEL, and AGM 12V lead-acid batteries | Gel, AGM, and STD (standard flooded) lead-acid batteries |
| Modes | Battery charge (30A) / maintain (3A), 100A engine start, battery reconditioning (electric-pulse desulfation), alternator check, and battery voltage test | Selectable 6V-2A / 12V-2A / 12V-8A rates; 7-stage charging at 12V (desulfation, soft start, bulk, absorption, battery test, reconditioning, float) and 3-stage at 6V (bulk, absorption, float) |
| Waterproof rating | — | — |
| Reverse polarity protection | — | Yes |
| Display | Blue backlit digital LCD (amps, battery/alternator status icons) with dedicated one-touch function buttons | Red 7-segment LED digital display (current/voltage) with status LEDs for charge status, battery reconditioning, reverse polarity, and capacity % |
| Temperature compensation | — | — |
Sources — DXAEC100 30A Battery Charger, Engine Starter & Maintainer: dewalt12volt.com (verified 2026-08-01). CGUFB2008 8A Smart Battery Charger: manualslib.com (verified 2026-08-01).
Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.