964 Cab Starting Issue

[Aviator53]

90 964 C2 Cab...relatively new battery kept on trickle charger...shows 12.8v but cranks like stereotypical low battery/dead battery. Runs fine once started but each start is the same even after driving it. Grounding strap/cable is free of corrosion...not sure about starter. Any ideas? Thanks.

[Aviator53]

Removed the cables running to the starter and cleaned up the contact points and still have same issue. Of note was that the solenoid (?) had a brown finish with some paint peeling...could this be due to high heat and possibly part of the problem?

[Newsboy]

Did you check the battery ground strap? Swap the battery with another & give it a try. Or take it to Sears or similar place for a test.