Kastar 2-Pack AAA 1000mAh Rechargeable Ni-MH 1.2V Batteries

KRoten: Used these to replace the batteries in my waterpick toothbrush.

1. Use a quarter to open the bottom of the toothbrush.
2. Remove the head of the toothbrush.
3. Push the metal shaft into the toothbrush. All electronics will come out the bottom in 1 piece when you do this.
4. Pull the old batteries out but don’t pull too hard because the will remain attached by two wires.
5. Use your soldering iron to remove the wires from the top of the batteries. You need to remove the heat shrink to get to the wires.
6. Remove as much of the tabs on the new batteries as you can. On one battery remove both tabs. On the other battery remove 1 tab. I was able to remove 1 with the soldering iron. The other two I just pulled off and chunks were left. Not a problem.
7. With some rough grit sandpaper sand the three ends of the batteries that don’t have a tab. You can see the ends go from shinny to a dull color. Also sand the inside of the tab that is left.
8. Dip the end of your soldier in some flux and dab a little on one end that does not have the tab. Heat up the surface of the battery where you put the flux and add a little solder to the end of the...

United States on Dec 17, 2023

Lunarcrank: I used these to replace the factory rechargeable batteries in my Braun trimmer. Easy to install if you have basic soldering skills. So far, I haven't had to charge my trimmer in about three weeks. I use it every couple days to neaten and trim my mustache and beard. They are holding up very well since the initial charge. Great deal. For about nine dollars and a little bit of my time I saved having to buy a new trimmer. Hopefully, the batteries will hold up for a couple years. At the moment, I'm very happy with them.

United States on Nov 14, 2023

Sandwichmaker: These were just what I needed as replacements for the two rechargeable batteries in my Philips/Norelco beard trimmer. Finding batteries with solder tabs is more difficult, but these are perfect. They are rated 33% greater in capacity compared to the originals, but fit perfectly. There are YouTube videos on line showing how to open the trimmer. Replacing the batteries requires the ability to solder, and extract solder from the battery connections to the printed circuit board.

United States on Nov 10, 2023

Public Customer Name: I unsoldered the worn-out batteries in my Braun hair clippers, and soldered these in. They are charging up nicely, holding a charge, and seem plenty powerful enough.

I don't know how long they'll last, but so far so good.

Edit 7/14/2023: Still working well after more than 6 months.

United States on Dec 24, 2022

IH: needed them to replace batteries in an electrical toothbrush. Worked fine, soldering was easy. Too early to talk about how long they will last

United States on Oct 17, 2022