Best Car Battery Chargers · head-to-head

GENIUS10 vs CGUFB2008 8A Smart Battery Charger

A sourced, side-by-side comparison. GENIUS10 is cheaper at $99.95. Every spec and price links to its source.

Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec GENIUS10 CGUFB2008 8A Smart Battery Charger
US price $99.95
BrandNOCOAmpeak
Released
Max charge amps 10 8
Voltage support (V) 6, 12 6, 12
Battery chemistry Wet/Flooded, Gel, AGM, EFB and Maintenance-Free lead-acid (up to 230Ah); Lithium (LiFePO4) Gel, AGM, and STD (standard flooded) lead-acid batteries
Modes MODE button selects Standard 12V / AGM 12V / Lithium 12V / 6V charge profiles; fully automatic multi-stage charging with Force Mode for batteries below 1V and automatic sulfation repair 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 IP65
Reverse polarity protection Yes Yes
Display LED indicator array (voltage, mode, temperature, battery %, fault icons) around a MODE selector button Red 7-segment LED digital display (current/voltage) with status LEDs for charge status, battery reconditioning, reverse polarity, and capacity %
Temperature compensation Yes

Sources — GENIUS10: no.co (verified 2026-08-01). CGUFB2008 8A Smart Battery Charger: manualslib.com (verified 2026-08-01).

What's the difference between the GENIUS10 and CGUFB2008 8A Smart Battery Charger?

Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.

  • Max charge amps: GENIUS10 10 vs CGUFB2008 8A Smart Battery Charger 8
  • Battery chemistry: GENIUS10 Wet/Flooded, Gel, AGM, EFB and Maintenance-Free lead-acid (up to 230Ah); Lithium (LiFePO4) vs CGUFB2008 8A Smart Battery Charger Gel, AGM, and STD (standard flooded) lead-acid batteries
  • Modes: GENIUS10 MODE button selects Standard 12V / AGM 12V / Lithium 12V / 6V charge profiles; fully automatic multi-stage charging with Force Mode for batteries below 1V and automatic sulfation repair vs CGUFB2008 8A Smart Battery Charger 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)
  • Display: GENIUS10 LED indicator array (voltage, mode, temperature, battery %, fault icons) around a MODE selector button vs CGUFB2008 8A Smart Battery Charger Red 7-segment LED digital display (current/voltage) with status LEDs for charge status, battery reconditioning, reverse polarity, and capacity %

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