hey all my 15 rav 4 has a battery with 09/22 date code on it and the other day i fixed a dirty connection issue. I have only had vehicle for few months so the batt replacement was from last owner. I am pretty certian he did short trips only and i am not sure if the bad connection/corroded connections resulted in the battery not full charging or if the batt is just sulfated. It seems to be about a year old and its a costco interstate group 35. I got it tested at a few auto stores, some say pass, some say fail, some say charge and retest. Without a cca tester, it shows about 12.5v when sitting after a day. My trips are about 15-20 mins at highway speed with some city driving so unless mistaken i should be able to recharge whatever it uses to start up
So today is first day I hooked up charger and the charger showed it was at about 80% charge, my goal is to just charge it to 100 with the charger and then monitor for some time, but i wanted to ask. Is it possible for it to be sulfated if it was low charge for 1 year ish? it was never dead enough that it didn't start the vehicle however. Also, if it did sulfate and since its a year old, what would you do to revive it if you were in my shoes? I am second owner so i wont be able to get the costco warranty on it anyways + i dont got a memb anywyas
thx
So today is first day I hooked up charger and the charger showed it was at about 80% charge, my goal is to just charge it to 100 with the charger and then monitor for some time, but i wanted to ask. Is it possible for it to be sulfated if it was low charge for 1 year ish? it was never dead enough that it didn't start the vehicle however. Also, if it did sulfate and since its a year old, what would you do to revive it if you were in my shoes? I am second owner so i wont be able to get the costco warranty on it anyways + i dont got a memb anywyas
thx