Blue Sea Mini Add A Battery Switch Kit BS-7649 

Easy battery switch wiring kit to use when adding a second battery. Suits Alternators up to 65A

The MINI ADD-A-BATTERY KIT is as simple to operate as an ON-OFF switch, yet effectively manages the switching and charging of two batteries from a single charge source.

Simplifies switching and automates charging for a 65A, two battery bank solution for small outboard powered boats.
• Suits alternators up to 65A
• Includes both the m Series Dual Circuit Plus Battery Switch 6011 and the m ACR Automatic Charging Relay 7601

M Series Dual Circuit Plus Battery Switch (Included)

• Switches two battery banks simultaneously while maintaining battery bank isolation
• Can combine two battery banks in the event of a low start battery
• IP66 - protected against powerful water jets

M Series ACR Automatic Charging Relay (included)

• M Series Dual Circuit Plus™ BS-6011 Battery Switch
• M Series ACR Automatic Charging Relay BS-7601
• Automatically combines battery banks when charging and isolates when discharging
• Start isolation protects sensitive electronics
• Dual Sensing senses charge on two battery banks
• IP67 - protected against immersion up to 1 meter for 30 minutes