Lithium Li-NMC (12 x 4.1V (Max) x 25Ah)

The batteries are expected to arrive around June 18th. More information will be updated then!

This is a Lithium-NMC (lithium-nickel-manganese-cobalt) battery that needs to be modified to be used in a car. It's the same battery that others sell ready-made for significantly more money. In the USA, they are called CMAX. More pictures will be uploaded soon.

NMC batteries have one of the highest energy-to-weight ratios among Lithium batteries. NMC also handles cold better and has about 5-10% more usable power than LFP above +20 degrees Celsius. At -20 degrees Celsius, they retain more than 50-70% of their energy compared to LiFePO4, which often drops below 50%. These batteries should not be charged below 0 degrees Celsius, as this can cause the battery to lose capacity and, in the worst case, destroy it.

The pack consists of 12 cells, currently connected to approximately 22V (6S2P). Each cell is Max 4.1V, 25Ah, 15C-25C (According to the manufacturer) and is sufficient for approximately 10,000W amplifiers. What needs to be done is to disassemble the battery pack and move the cells according to picture 2 (4S3P), make busbars (existing ones can be modified), and purchase a balancing circuit that can handle NMC batteries and 4S. It can be found here.

Currently, we are unable to ship this item. We are working on a solution.

FAQ
Why are they so cheap: This is a "Do It Yourself" battery. It must be modified before you can use it in your car, and no balancing circuit is included; it must be purchased separately here..

Are they new: No, these battery packs come from dismantled electric car batteries.

Are they tested and OK: Yes, they are tested and are OK. OK means they have more than 70% of their original capacity remaining.

Are they flammable: Yes, NMC batteries can burn.

Can they be used in winter: You can use them to draw power, however, performance is reduced. Charging them is not recommended below 0 degrees Celsius.

Warranty: Yes, for 3 months against cell defects.