NinjaBatt Battery for Acer AS07A31 AS07A51 AS07A41 AS07A71 AS07A75 AS07A32 AS07A42 AS07A72 AS07A73 AS07A74 LC.BTP00.012 Aspire 2930Z 4720Z 4736Z 4920 4935 4935G 5332 5536G 5542G 4740 5740 5535

This is the 2nd Ninja battery I have bought for my PC from this seller I did buy another make in between which did not last half as long as the Ninja, gives a good 2 and a half hours use.

Worked perfectly

Battery fits correctly and gives a good two hour run time before needing recharge.

Better than expected

Firstly, amazing delivery via Prime. From order to delivery in under 6 hours, most impressive. Shame about the product.... The AS07A41 11.1v 4400mAh NinjaBatt arrived with 78% charge. Fitting was a perfect, snug insertion and I plugged it to the Acer OEM charger to fully charge overnight before first use. 12 hours later the battery was still showing 78%! Windows shows the battery as “plugged in but not charging”. Fearing the charger was also faulty, I tried it in another Acer laptop but it charged perfectly. Unfortunately, the Ninjabatt battery purchased must be faulty so it will be returned. A right pain.

I was very pleased with the product also the very fast delivery time.( but not pleased with the delivery person leaving the battery on my door step as it could have been stolen or get wet)

Battery was delivered quickly and is working very well. It is well made, and hopefully will continue to give good service

It's not a bad battery. Offers approximately 2 hours of life. I am always dubious with after market laptop batteries as they usually do not show a year of manufacture. This means you cannot be entirely sure it hasn't sat around for a while (considering its a battery for quite an old laptop now). Stick with brand names. Not bad for £25.