How much time for building a MASON 48V DIY battery pack?

Build a battery pack for home energy storage system, make your home energy independence and free, what a cool ideal.
16pcs Battery cells +1pcs Battery kits= 51.2V 280ah/300ah, a 15KWH pack, for most of fmialy daily usage is enough.
If you want bigger, so 32pcs cells + 2pcs kits, = 30KWH bank.
How much time will you spent for building the kits? 2-3 Hours.
Poland, USA and CHINA warehouse all are available.
Contact me:
April Cao:
EMail: [e-mail]
Tel/Whatsapp: [phone]
TH-cam channel customer buy the kits or battery cells can get extra discounts.

[@user-ek5qy7my8i]

Question. How long does this passive balancer take to balance 280 ah cells. i have been waiting 20 hours and they are still not balanced. Should the balancer have time to balance the cells before the next start of battery discharge?

[@Deligreenbatteryoffical]

Hi Sir, passive balancer current should be very smaller, balancing current, battery cell capacity and balancing time, if your battery cells volt differ is bigger, then add a active balancer will be better

[@mikegrok]

Top or bottom balance before starting
assemble,
set your voltage range for charge and discharge to 10% to 90% of the final values
check in a day, a week, a month
once everything is balanced set it to your final values.
off grid garage said that his packs often took 7 to 20 days to reach equilibrium.
an active balancer will be able to tell you if one of your cells is under performing.
If you can't easily get a new cell, you can supplement your low cells with some 18650 (or smaller) cells (of the same chemistry) to bring them in line. Just wire the supplemental batteries in parallel with the low cell. Going over capacity to the rest of the pack is safer than going under capacity, you just need to lower the top voltage of the pack to accommodate the reduced voltage of the over capacity cell.