Have posted before. We are at 2.5 years with our LFP system. Have had no hiccups.
System is approximately 9 kW-hrs and is composed of four batteries, each battery is composed of 4 x 180 amp-hr 3.4 V (nominal) CALB (Chinese Aviation Lithium Battery) cells. The four batteries are in series for a 48 V (nominal system). The battery suite, battery management system etc were purchased from Manzanita Micro and installed by our son. There are 1.4 kW of panels
We have lasted six to seven days in heavy rain forest (Olympic Peninsula) with no problems. Just changed energy/power management and did not run inverter except when required.
We are currently on the beach about 20 km north of Tulum. There is line power available and we have used it three times in last two weeks to charge batteries when it rained all day and we neglected to turn off inverter when we went to bed/or decided to run the Dometic air conditioner (it takes 2200 W) after dark. We were down -6500 W-hrs the next morning. We are in shade of coconut palms until around noon and have still harvested 5000 W-hrs on sunny days down here. Meximum every was around 8500 W-hrs in mid-summer when we ran fridge and hot water all day.
Reed and Elaine
