ODIN
TECH GOD!
Official Answer
For our Gen-1 and Gen-2 11.1v portable sonar batteries you cannot use the 14.2v 3a Green charger. This is because the previous generations used to be Lithium-Ion, but now our Gen-3 is LiFePO4, we do offer a 2a 12.6v Lithium-Ion battery made specifically for your Gen-1 and Gen-2 11.1v portable sonar batteries.
Answered by Odin TECH GOD!