A strong pick for anyone charging car, truck, boat or RV batteries regularly: fast, full featured and still able to maintain a battery for months.
Amazon $99.87The NOCO GENIUS10 is the better battery charger overall, rated 3.5 to 3.4. The NOCO GENIUS10 leads on features. The Schumacher Rugged SC1684 wins on value. The Schumacher Rugged SC1684 costs $18.88 less ($80.99 vs $99.87).
A weatherproof 10 A charger for home mechanics with lead acid or lithium batteries who want a power supply mode for battery swaps.
Amazon $80.99Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the NOCO GENIUS10 for features (lithium mode, temperature compensation, repair mode, power supply mode vs lithium mode, repair mode, power supply mode).
- Choose the Schumacher Rugged SC1684 for value ($8.10 per amp ($80.99, 10 A) vs $9.99 per amp ($99.87, 10 A)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every over 5 A battery charger; a clear win is highlighted. How we rank explains each one.
| Factor weight | NOCO GENIUS10 | Schumacher Rugged SC1684 |
|---|---|---|
| Overall rating | 3.5/5 | 3.4/5 |
| Value 35% | 55 $9.99 per amp ($99.87, 10 A) | 65 $8.10 per amp ($80.99, 10 A) |
| Charge current 20% | 12 10 A | 12 10 A |
| Features 25% | 100 lithium mode, temperature compensation, repair mode, power supply mode | 75 lithium mode, repair mode, power supply mode |
| Warranty 20% | 50 3-year warranty | 50 3-year warranty |
Independent measurements
NOCO GENIUS10
| Tested by | Current | Charge time | Conditions |
|---|---|---|---|
| Budget Light Forum (HKJ) | 10 A | - | Reviewer measured “basically 10A” of charge current on his sample; battery size and state of charge not stated. |
Schumacher Rugged SC1684
No independent test published yet.
Specifications
| NOCO GENIUS10 | Schumacher Rugged SC1684 | |
|---|---|---|
| Charging | ||
| Charge current | 10 A | 10 A |
| Voltage | 6/12 V | 6/12 V |
| Largest battery | 230 Ah | - |
| Lithium mode | Yes | Yes |
| AGM mode | Yes | No |
| Temperature compensation | Yes | No |
| Repair mode | Yes | Yes |
| Power supply mode | Yes | Yes |
| Build | ||
| Ingress rating | IP65 | IP66 |
| Weight | 3.3 lb | 2.9 lb |
| Warranty | 3 years | 3 years |
| Released | 2019-11-08 | 2025-12 |
