313 On-Board Marine Battery Charger, 3-Bank, 5/5/3 Amp Part Number 31713

Automatic charging for Lead Acid or GEL Batteries
Charges and conditions batteries with a built-in safe maintenance mode for long and short term storage.
Auto Transfer Technology will maintain the engine crank battery while transferring 100% of the available charging amps to your trolling batteries.
Waterproof, shock resistant and saltwater tested
Reverse polarity, ignition and temperature protection
Power, charging and maintaining LED indicators
Pre-wired for easy installation

• Size : 9" x 5.25" x 2"
• Volts : 12/24/+ ENG
• Banks : 3
• Amps : 37746