Amaron — Amaron tribal batteries are not charging

Address:

1-4-125/H/13, NEAR ERIGATION DEPT OFFICE,ADHARSHNAGAR

Sir
Amaron batteries 4 installed for 1kv solar in 2017 march 10, house purpose.
After 3years batteries going charging down. Now did not charging. Solar mechanic said batteries are not charged replace it. This have guaranty 5years plz as soon as replace and resolve my problem.