May 30, 20224 yr I decided to do a load test with these results using a 24V Axpert 3kva clone. AC power used by a very old power hungry fridge/freezer. Power used=103.33W per hour. Power used over 30hrs:2.7kWh Add inverter self consumption:0.75kWh Minus PV charging:0.35kWh Power from batteries:3.1kWh which comes to 3.1kWh. Thus each battery provided 1.55kWh. At end of test the 2 batteries were at 25.2V. This leaves some more power available but stopped the test. At a average voltage of 13.1V comes to 118Ah. Prior to test the batteries were charged to 13.9V each (27.8V) at which point the current has dropped to about 3A which implies they were not 100% full. Anybody still considering using them I can just say I am very impressed with these 2nd life cells. Batteries are in use for 6 months but not cycled everyday.
May 30, 20224 yr Author 5 hours ago, 18650 said: That's pretty good for a battery Aren't those second life batteries? YES YES YES. 120Ah when new. Sold as 100Ah and no longer available as the S-120 is the current model sold and quite a waiting list AFAIK. During Dec I did the same test and also got the same result of 1.5kwh per battery. And yes I stole them as I paid quite a bit below R5 000 each. Edited May 30, 20224 yr by Scorp007
May 30, 20224 yr 41 minutes ago, Scorp007 said: YES YES YES. 120Ah when new. Sold as 100Ah and no longer available as the S-120 is the current model sold and quite a waiting list AFAIK. During Dec I did the same test and also got the same result of 1.5kwh per battery. And yes I stole them as I paid quite a bit below R5 000 each. Then that is a damn good deal you have there for under 5 grand a battery
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