seattleStu
New Member
- Joined
- Oct 22, 2021
- Messages
- 3
I bought a new 100 ah Renogy LiFePO battery over the summer. It didn't hold a full voltage after being fully charged. I would charge it fully to 13.9 v. Then it would sit for a day with nothing connected to draw, and it would be 13.23 v after 24 hours. According to the Renogy chart, this was 75% or so of a charge. Chart attached for reference. After many weeks (8 weeks?), and hours on the phone, Renogy picked up the battery for testing. They determined there was a problem, and sent me another battery!!
I charged it up to 13.9 v using a Noco Genius 5 charger. Then a few hours later, it started dropping, and in 24 hours, with nothing connected, it was at 13.24. Now I am thinking that I am doing something wrong.
Is this another faulty battery?
Is my testing with a multimeter wrong or off?
Is there another way to test that the battery is full, not at 70 or 80% right away?
Thank you for any help, I know enough to be confused, but not enough to be confident!
I charged it up to 13.9 v using a Noco Genius 5 charger. Then a few hours later, it started dropping, and in 24 hours, with nothing connected, it was at 13.24. Now I am thinking that I am doing something wrong.
Is this another faulty battery?
Is my testing with a multimeter wrong or off?
Is there another way to test that the battery is full, not at 70 or 80% right away?
Thank you for any help, I know enough to be confused, but not enough to be confident!