Electrical Another Tow Secure battery dead

[jazzeddie1234]

Random trip out to the CV in the drive and I decided to plug the TS charger in for a while, only to be greeted with a low battery indicator. I do forget to keep it charged, especially when free camping. Anyway I'm trying to revive it as it settles to around 11V. The volts on charge quickly rise to 14.9V (max printed on case) which suggests a high internal resistance. A day at max charge voltage was unsuccessful so I cranked up the voltage to get a couple of amps in for 30 second bursts. Now back on charge to see if that broke anything

 

[Drover]

Mines hot wired to the van 12v supply flick switch so it gets charged when I remember to flick the switch ............ mine died after near 10 years just couldn't revive it to hold out, nice slow charge to bring it up but eventually failed under load so replaced from Bunnings with a $34 Century PS AGM battery, easy peasy.... but really I should have just wired it to run off van battery all the time as thats what happens with new vans nowadays.......