Pablo Vitaver
New Member
- Mar 8, 2023
- 3
- Boat Info
- 2011 Sea Ray 270 SLX
- Engines
- Mercuiser 8.3 with Bravo
I have 2 group 31 batteries I think I fried them leaving the boat on they are down to 7.4V. Anyway I want to replace them with same group, lithium batteries. My charger is a ProMariner ProSport 20. Do I need to replace the charger too? Thanks for any advice.