I had same thing at the sides on the triangle when i got the new one i made another piece of metal so when the bolts are in it spreads the load more and on inside as well.
Hi allex
Yes its 21s10p atomic built it, you was away at the time,
battery does sag quite noticeable,Under wot but still works a treat id say sags from charged to 86v to 80v ish @ first then recovers fine
Iv changed couple of these,i put voltage display on my stealth charger so the blue wire is charger output,in my pic u could just take end cover off ur charger and put voltmeter on the end screws then u can be sure as thay could of changed wire colours by...