NOCO Genius GENPRO10X2
#2 in 1 and 2 bankFull review
For a boat with a starting battery and a 12 V trolling or house battery that gets drained hard, with lithium support on both banks.
Amazon $224.95$224.95
The NOCO Genius GENPRO10X2 is the better onboard marine battery charger overall, rated 4.0 to 3.3. The NOCO Genius GENPRO10X2 leads on features and warranty. The Guest ChargePro 2720A wins on value. The Guest ChargePro 2720A costs $42.31 less ($182.64 vs $224.95).
Guest ChargePro 2720A
#10 in 1 and 2 bankFull review
For a two battery boat on lead acid batteries that wants 10 A a bank for little money. It has no lithium mode.
Amazon $182.64$182.64
Prices were last checked November 2, 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 Genius GENPRO10X2 for features (lithium mode, IP67 or better, temperature compensation, charge display or app vs IP67 or better) and warranty (3-year warranty vs 2-year warranty).
- Choose the Guest ChargePro 2720A for value ($9.13 per amp ($182.64, 20 A total) vs $11.25 per amp ($224.95, 20 A total)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 1 and 2 bank onboard marine battery charger; a clear win is highlighted. How we rank explains each one.
| Factor weight | NOCO Genius GENPRO10X2 | Guest ChargePro 2720A |
|---|---|---|
| Overall rating | 4.0/5 | 3.3/5 |
| Value 30% | 79 $11.25 per amp ($224.95, 20 A total) | 92 $9.13 per amp ($182.64, 20 A total) |
| Charge current 15% | 58 20 A total (2 banks of 10 A) | 58 20 A total (2 banks of 10 A) |
| Features 25% | 100 lithium mode, IP67 or better, temperature compensation, charge display or app | 25 IP67 or better |
| Warranty 30% | 50 3-year warranty | 25 2-year warranty |
Specifications
| NOCO Genius GENPRO10X2 | Guest ChargePro 2720A | |
|---|---|---|
| Charging | ||
| Banks | 2 | 2 |
| Current per bank | 10 A | 10 A |
| Total current | 20 A | 20 A |
| Lithium mode | Yes | No |
| AGM mode | Yes | - |
| Temperature compensation | Yes | - |
| Build | ||
| Water rating | IP68 | IP67 |
| Display or app | Yes | No |
| Ignition protected | Yes | Yes |
| Weight | 7.2 lb | 6.6 lb |
| Warranty | 3 years | 2 years |
| Released | 2020-08-17 | 2018-09-10 |