Connecting Battery Charger to Two Parallel Batteries

Updated 02/25/2019 | Published 02/23/2019

Question:

I have a 10k electric boat winch that I want to connect directly to the trucks batteries so it will automatically stay charged. Being a duel battery system, do I just wire it as a single battery system? Does it matter which battery I connect to? The truck is a 2005 F350 diesel duel battery system 12V system. What would you suggest. The winch is a Fulton 10k electric winch. 3000# boat. Thanks

asked by: Steven V

Expert Reply:

Connecting a charger to two batteries in parallel really will be the same as wiring them in parallel. You'd put one terminal on one battery and the other on the other battery.

expert reply by: Jameson C