How many 250w or 300w panels required to charge two 48v 8.7kwh lithium batteries

[Majorotis]

How many 250w or 300w panels required to charge two 48v 8.7kwh lithium batteries

 

[400bird]

One would do it eventually.

But, you probably mean one day. Summer or winter? Each is going to have very different solar production.

Go here: https://pvwatts.nrel.gov/
See what production in your area at different times of year and compare that with your 8.7 kWh 17.4 kWh pack and how quickly you want to recharge it.

 

[SamDeleted]

How many 250w or 300w panels required to charge two 48v 8.7kwh lithium batteries

With you being in Nigeria I'd imagine you get VERY good sun ??

The more sun, the more solar power

If so , each panel will make roughly 6 times it's rating per day

250w solar panel will give 1.5KWh per day
300w solar panel will give 1.8KWh per day


Two 8.7kwh lithium batteries = 17.4kwh battery total

To recharge in one day , I would want:

12 x 250w panels,
Or
10 x 300w panels