NinjaBatt B31N1912 C31N1912 Asus Battery for VivoBook 14 E410M E410MA E410KA E410MANS E410, VivoBook 15 R522MA, VivoBook E510 E510MA E510KA, L410MA, L510MA, R429MA, X415 X515 – [42Wh/11.55V]

This was a perfect fit for my Asus laptop! My brother had no issues with installing the battery, it was very compatible. The laptop is running great now and the battery seems to last a good amount of time.

A good quality battery. Remove the old battery first, then install the new battery. Check if the replacement battery is properly installed. Plug in the charger, then power on your laptop and let the charger charge your laptop till 96%. Work with your laptop without the charger until it shuts off on its own. Recharge your laptop now till 100%.and you are good to go.

It is doing the task on my laptop very well

definitely easy to install. charge lasts decent amount, although I was working with a dead battery, so anything seems great right now. i've only bad the battery for a week, so I can't speak to its actual longevity, but overall i'm very pleased with the replacement and i'm happy my laptop is portable again.

My beloved 10 year old computer started having charging problems in Nov. 2023 (it's a 2013 Asus laptop that I play backgammon on daily). I thought it was a goner - 10 yrs is a good run. So, I bought a backup laptop (it's OK) & ordered a new battery (I like electronics & was in Signal Corps). Looked up changing a battery online also. Took about 10 mins (trying to carefully lift the case apart took the longest) 2 mins to actually change the battery out (pops out - carefully & new one popped right in - carefully). Don't know how long this ninjabatt will last (probably not 10 years), but I will change it out again. And it will be easier now that I know how. Piece of cake & my computer is back to a full charge. Hopefully a great product, at a great price! Thanks - a very happy senior!

So far it is a great battery. The computer shows that it has a battery life of approximately 4 hours I guess that will depend on usage. It fits my Asus X522L Laptop, it's an old laptop that I use mostly for media & I don't want to throw it away.

Exactly what we needed to extend our laptop RAM and battery. Thanks.

Excelente producto 100% compatible con la marca y la lapto para la cual la compramos.