What the **** could be wrong with my Garmin Striker 9 SI. Works great then starts shutting down. It restarts then shuts down again in about 10 minutes.
When it is on it works great.
Thinking bad lithium battery but it recharged in 15 minutes after all day intermittent usage due to shutting down.
Charged reading is 14v.
No short found in wiring.
Will they overheat in hot weather?

