Hi,
While service my trailer sailer I found my deep cycle battery was no longer holding my the charge.
After extracting from the boat, I realised there is no fluid left in the battery and it was kept on the solar panel.
Do you think it is permanently damaged or shall I try fill it with demineralised water and see if battery is still fine.
If it is considered dead, shall I look at purchasing a sealed battery??
Thanks for your help.
Damien