12 Pack 1.2V Sub C SubC 1800mAh NiCd Ni-Cd Rechargeable Battery for Power Tools Battery Pack (w/Tabs)

These make me laugh. I'm laughing as I write this. Years ago I bought a Manscraft 14.4 cordless drill. Of the two battery packs that were included, one was sick and the other most dead. I finally thew away the dead one (wouldn't accept a charge). A few years later I found a pack at Saers on the closeout table for $5 (what a stroke of luck). Turns out, that was a much better pack. After years of not needing the cordless drill much, though I used my corded one a few times when using the cordless would have been more convenient, I looked into a replacement pack. The only pack that would still take a charge only accepted a weak charge that would spin the drill at low rpm, and made all the bits I tried seem dull. That's when I learned that a battery pack can be rebuilt and that it was, reportedly, not that difficult.So after checking battery sizes to try to make sure they'd fit inside my battery packs, I finally decided on these "HyperPS 12 pcs 1.2V Sub C SubC 1800mAh NiCd Ni-Cd Rechargeable Battery for Power Tools Battery Pack (w/ Tabs)" from Amazon. And, though the OLD batteries I was replacing were 1300mAh, I took a chance. With my soldering tool (cheap) and a lot of patience, I succeeded. These batteries are, seemingly, fully charged. I've used the drill several times with the rebuilt pack. After every other use or so I recharge the pack but I don't notice any difference. My conclusion is that the original batteries included with the Manscraft drill were a piece of work. And yes, I'm using the same charger that came with the drill.I bought another dozen to rebuild the other pack (Home Derpet will accept your old batteries for recycling) but so far it doesn't look like I'll need the second pack.

Short time review. These have been working flawlessly in a 6 amp draw vacuum cleaner. Spot welded wires are a little thin otherwise would rate higher.