I've been using two Osaka 220AH batteries for around 2 years now.
And it seems lately they have finally run their course. The maximum duration I can get from them(fully charged) is 1 hour with 200 Watts load.
Someone suggested I do a 'battery service' where they: (keywords)
'fully charge it'
My question, how valid is a battery service? And does it improve upon my situation(i-e extend backup timings from 1 hour onwards?)
Will it turn back the clock on the battery's life, or is it just unavoidable that these batteries will eventually die within 6 months?
Thanks in advance for any response