Wanderingon
New Member
I recently picked up 2 Ogrphy LAF12260 LifePo4 260AH batteries from Amazon. Both arrived in good condition at 13.16 volts. I used a NOCO Genius 10 (Li) to charge both batteries in the house (room temp).
Voltage test #1:
Battery #1 charged to a max of 13.67 volts after 20 hours, then left in float mode for another 12 hours. After 24hr rest the voltage showed 13.46, and remained at that voltage for 8 days before dropping to 13.45volts.
Battery #2 charged to a max of 13.63 volts in 14 hours, then left in float for another 18 hours (same amount of time on the charger). After 24hr rest, the voltage showed 13.48, dropped to 13.41within 3 days, and down to 13.40 volts 2 days later.
Voltage test #2:
Battery #1 re-charged to 13.93 volts and went to float after 20 mins. After 24 hr rest the voltage showed 13.55, and held for 2 days dropping to 13.54 volts for the next 5 days (end of test)
Battery #2 recharged to 14.22 volts and went to float after 20 mins. After 24 hr rest, the voltage showed 14.12, and after 24hours showed 14.05volts.
Over the next 3 days it consistently dropped to 13.99 volts; held at 13.98volts for 2 days, then dropped down to 13.96 volts the last 2 days.
I've placed no load on either battery yet.
Based on this info, does Battery #2 have serious issues like a bad BMS, or shorted cells? Or, do I need to do some load tests or something?
I already reached out to Ogrphy, and they said they would be responsible to send a new replacement. Quote, "We have noticed your problem and it is the first time we meet this kind of problem from our customers. The full charge should be 13.5v-13.8v".
Any insight would be greatly appreciated! Thanks
Voltage test #1:
Battery #1 charged to a max of 13.67 volts after 20 hours, then left in float mode for another 12 hours. After 24hr rest the voltage showed 13.46, and remained at that voltage for 8 days before dropping to 13.45volts.
Battery #2 charged to a max of 13.63 volts in 14 hours, then left in float for another 18 hours (same amount of time on the charger). After 24hr rest, the voltage showed 13.48, dropped to 13.41within 3 days, and down to 13.40 volts 2 days later.
Voltage test #2:
Battery #1 re-charged to 13.93 volts and went to float after 20 mins. After 24 hr rest the voltage showed 13.55, and held for 2 days dropping to 13.54 volts for the next 5 days (end of test)
Battery #2 recharged to 14.22 volts and went to float after 20 mins. After 24 hr rest, the voltage showed 14.12, and after 24hours showed 14.05volts.
Over the next 3 days it consistently dropped to 13.99 volts; held at 13.98volts for 2 days, then dropped down to 13.96 volts the last 2 days.
I've placed no load on either battery yet.
Based on this info, does Battery #2 have serious issues like a bad BMS, or shorted cells? Or, do I need to do some load tests or something?
I already reached out to Ogrphy, and they said they would be responsible to send a new replacement. Quote, "We have noticed your problem and it is the first time we meet this kind of problem from our customers. The full charge should be 13.5v-13.8v".
Any insight would be greatly appreciated! Thanks