NOCO Genius GEN5X1
#8 in 1 and 2 bankFull review
A cheap way to keep a single starting or trolling battery topped up aboard a small boat. Buy a bigger charger for a deep cycle bank you drain every trip.
Amazon $79.95$79.95
3.3/5
For a two battery boat on lead acid batteries that wants 10 A a bank for little money. It has no lithium mode.
- 2 x 10 AOutput
- 20 ATotal current
- NoLithium mode
- IP67Water rating
Check price at Amazon$182.64
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Low price for a UL listed, ignition protected onboard charger
- IP67 aluminum housing shrugs off spray and bilge water
- Separate charging and sensing on each bank, so a drained trolling battery does not hold back the starting battery
- 10 A per bank refills a deep cycle battery overnight
Cons
- No lithium profile, so it cannot charge a LiFePO4 trolling battery
- Only a 2 year warranty
- Status lights show charging stage, not how full each battery is
The Guest ChargePro family
Every Guest ChargePro model we rank, smallest first. Ratings compare each against its own bank count.
| Model | Output | Rating | Price |
|---|---|---|---|
| Guest ChargePro 2707A | 2 x 4 A | 2.7/5 | $121.86 |
| Guest ChargePro 2711A | 2 x 5 A | 2.7/5 | $145.83 |
| Guest ChargePro 2720A (this one) | 2 x 10 A | 3.3/5 | $182.64 |
| Guest ChargePro 2713A | 3 x 5 A | 2.8/5 | $170 |
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its bank count. How we rank explains each one.
Specifications
| Model number | 2720A |
|---|---|
| Charging | |
| Banks | 2 |
| Current per bank | 10 A |
| Total current | 20 A |
| Lithium mode | No |
| Build | |
| Water rating | IP67 |
| Display or app | No |
| Ignition protected | Yes |
| Weight | 6.6 lb |
| Warranty | 2 years |
| Released | 2018-09-10 |
Alternatives in this bank count
Minn Kota MK-212PCL
#9 in 1 and 2 bankFull review
For a small boat with a starting battery and a 12 V trolling battery of modest size, with lithium support on both banks.
Amazon $171.94$171.94
Minn Kota MK-106PCL
#11 in 1 and 2 bankFull review
For a single starting or small trolling battery, lead acid or lithium, on a small boat. Pick the 10 A version for a big deep cycle battery.
Amazon $110.99$110.99
Compare
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