Second Life Storage & Solar

Based on this youtube - looks like Sodium based batteries are making major progress. Has a bit of history about Lithium-ion / how it works vs Sodium. Well produced, moves along, interesting...
View: https://youtu.be/6MIBsuC9REo?si=t42ORm60wKfE-h1q

Why would the manufacture recommend this :

When the green signal light is on, unplug the battery input connector.
Charging time: Typical single charging time is about 5.5-6 hours. Never charge for more than 12 hours at a time.

Does the bms not cut off the charge like it's supposed to when full.
Once the cells hit the charger's max voltage does i...

Hello,
I'm selling 50 bicycle batteries
(not easy to disassemble)
With 20 cells per battery
(INR18650-32E Samsung Li-ion)
So there are 1000 18650 cells in total.
I had an accident and the batteries shut down after a year of no use or charging.

But the cells have few cycles; a good number are even new.

(I disassembled one to check.)
(...

For anyone like me, that has had the painful experience of trying to monitor multiple packs using Seplos BMS I have come up with a nice little solution for remote monitoring.

We all know that Battery monitor won't see pack 00 if it is connected to an inverter via CAN and you can only monitor pack 01, which is frankly, useless! Also the bluetooth modules require you to ...

Hey everyone,

I’m looking for some advice and guidance on a DIY battery storage project I’m planning.

I recently got several Kia battery packs for free, which happened at the perfect time because I was already searching for affordable alternatives to add battery storage to my solar setup. Since they cost me nothing, I thought this could be a great learning proj...