The whole bottom balancing these cells are different than Lead Acid batteries. You pull each individual cell down to 2.750 volts. Get all of them within a few milli-volts of each other. Then charge them all up (connected in series for a nominal 48v pack (actually 56v) ) together.
Happily, as they are charging up, they are remaining well balanced. The last reading after today's cloudy day, putting in 2.4 KwH, showed them all within 2mV.
I am relieved to no longer need to balance the cells. All in all, it took me a week and a half for the 16 cells. Between the rain, building the other structures, sleeping, and sun-stroke.
Tomorrow I'll connect both strings to the combiner box. Today showed me that even in some not so perfect conditions, half of the array was producing enough to power (per hour) my 42in TV for an hour. With the full array pulling in power.... I should be golden!
|A view into our Life.|
|2000 Watts basking in the sun.|
|Putting 15.2 amps into the batteries. 819 Watts (1000watts connected)|