Seakeeper 2 Installation Manual (90488-3); S/N 2-203-0400 to 2-232-1563
Low Current 12 V Power Input
Low Current 12 VDC Power Source Requirements
Source | Battery Bank, 12 VDC, Marine, Deep Cycle |
Alternate Source | Power Supply / Battery Charger, 12 VDC |
Voltage Range | 10 – 16 VDC |
Continuous Current | 9 A |
Overcurrent Protection | 15 A (Customer Supplied) |
Low Current 12 VDC Power Connection Instructions

Reversing polarity on the DC power input to the Seakeeper can result in damaging the electronics in the control system.
- Install Seakeeper-provided DC Power Input Cable, (P/N 20248) as Cable 7 to battery bank.
- Connect plus conductor (B+, red) through dedicated over-current protection device (customer supplied).
- Connect minus conductor (B-, black) directly to battery minus terminal.
- Before connecting Cable 7 to Seakeeper, check for proper voltage and polarity with a DC multimeter using Figure 5 below.

- Connect Cable 7 to Low Current 12 VDC power input connector on the Seakeeper.

When energizing DC power the first time, if display does not power up immediately then disconnect and inspect connector polarity.