Parts/Repair Ironworks 1240st 12.8v 44ah w/ BMS

These are awesome packs to get some great value out of. We attempted to charge these packs and they did not charge. In most cases there will be a group of dead cells or the cells are just sitting at a low voltage because the BMS drained them after sitting for a long time. You can recover the enclosure, the BMS, and should be able to recover many of the cells. There are 56 32650 cells inside. Each cell is rated for 3.2v 3200mah. They are in 4s14p configuration. The value is here just for the BMS and enclosure with all the hardware so all the extra cells salvaged would be a bonus. Sometimes the BMS is bad and all the cells are good. Ultimately you will get a lot of good value out of these.

To open these as you can see in the 2nd and 3rd photo, we removed the handle part. Then we used a dremel and cut the seam along the short sides and the side with the posts. After that you can flip open the lid and avoid accidentally cutting any wires that are routed towards the back side of the case. To reuse the case just sand down where you cut and use some plastic glue which can be found at Home Depot or Amazon. Or duct tape would do the trick as well. There is some glue holding the cells in place but we were able to use a plastic trim tool to get through the glue and eventually the cells just come out. If you don't want to reuse the enclosure, when the lid is open, you will see where you can cut the rest of the case to get the cells out easier.

Ironworks 12.8v 44ah 573wh. Fully charged would be 14.4v. Fully discharged 10v. Perfect for 12v applications. Built in BMS.

Dimensions: 7.75" wide, 4.75" deep, 7" tall.

Weight: 13 lbs.

Can be charged up to 20a.

Discharge up to 40a.

Uses M6 bolts.