Allmax AAAA (4A) Maximum Power Alkaline Batteries (8 Count) – Ultra Long-Lasting, 5-Year Shelf Life, Leakproof Design – Perfect for Surface & Stylus Pens, 1.5V

I ordered these batteries as replacements for my surface pro stylus and they work like a charm. They have a long battery life (I use my stylus often as I am a student) and go many months without thinking about having to replace them. They also hold charge for a very long time, given that you won't need to replace your battery for long periods of time. I would definitely recommend to anyone who's interested!

These batteries are a great value for your money

I have been using Radio Shack AAAA batteries to power my Streamlight Stylus light. The last batch of 8 batteries 2 were leaking and 3 were nearly dead. These batteries are full power and work great.AAAA batterys are hard to find so thank you Amazon.

Small battery

Arrived quickly after ordering! I use these batteries in my surface pro pen and I have absolutely no issues with it. My pen is always being used and has been on constantly since I got it. The other review should be deleted. Giving a review for their own mistake isn't very appropriate or fair.

Es difícil encontrarlas a buen precio en Colombia. Es perfecta para lápices opticos y son durables.

These batteries are well made, have long shelf life and sealed construction to prevent leaking common to most batteries. Used in devices that operate infrequently, so it is important that they do not leak and corrode electronic devices.

Use these in my active pens for my surface laptop and my Lg Phone. Have only hade them in the pens for a few months but they are working fine and much cheaper than any other 4A batteries.