Minn Kota MK-345PCL
#4 in 3 and 4 bankFull review
For a three battery boat with big deep cycle or lithium trolling batteries that need the fastest Minn Kota charge.
Amazon $372.02$372.02
The Minn Kota MK-345PCL is the better onboard marine battery charger overall, rated 4.1 to 3.3. The Minn Kota MK-345PCL leads on charge current, value and features. The ProMariner ProSport HD 20 Plus costs $116.39 less ($255.63 vs $372.02).
ProMariner ProSport HD 20 Plus
#11 in 3 and 4 bankFull review
For bass boats with a starting battery and a 24 V trolling pair, with ignition protection for gasoline engine bays.
Amazon $255.63$255.63
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 Minn Kota MK-345PCL for charge current (45 A total (3 banks of 15 A) vs 20 A total), value ($8.27 per amp ($372.02, 45 A total) vs $12.78 per amp ($255.63, 20 A total)) and features (lithium mode, temperature compensation, charge display or app vs lithium mode, IP67 or better).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 3 and 4 bank onboard marine battery charger; a clear win is highlighted. How we rank explains each one.
| Factor weight | Minn Kota MK-345PCL | ProMariner ProSport HD 20 Plus |
|---|---|---|
| Overall rating | 4.1/5 | 3.3/5 |
| Value 30% | 98 $8.27 per amp ($372.02, 45 A total) | 71 $12.78 per amp ($255.63, 20 A total) |
| Charge current 15% | 67 45 A total (3 banks of 15 A) | 11 20 A total |
| Features 25% | 75 lithium mode, temperature compensation, charge display or app | 50 lithium mode, IP67 or better |
| Warranty 30% | 50 3-year warranty | 50 3-year warranty |
Specifications
| Minn Kota MK-345PCL | ProMariner ProSport HD 20 Plus | |
|---|---|---|
| Charging | ||
| Banks | 3 | 3 |
| Current per bank | 15 A | - |
| Total current | 45 A | 20 A |
| Lithium mode | Yes | Yes |
| AGM mode | Yes | Yes |
| Temperature compensation | Yes | - |
| Build | ||
| Water rating | - | IP67 |
| Display or app | Yes | No |
| Ignition protected | - | Yes |
| Weight | 15.6 lb | 7.8 lb |
| Warranty | 3 years | 3 years |
| Released | 2024-07-26 | 2021-01-25 |