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.