Battery for HP 593553-001 636631-001 MU06 MU09 593554-001, HP Pavilion dm4 g4 g6 g7 DV3-4000 DV5-2000 DV6-3000 DV7-6000, Compaq Presario CQ42 CQ56 CQ57 CQ62 - High Performance

Battery was the right one, fit perfectly and is working as advertised.

I don’t write reviews often, but this laptop battery deserves some recognition. From the moment I installed it, my laptop instantly felt like it had a second wind. The installation was seamless—no tech background needed. It charged quickly, held the power beautifully, and I could immediately feel the difference in performance. As someone who relies on her laptop daily for both creative flow and client work, having dependable battery life is non-negotiable. This gave me peace of mind and hours of uninterrupted productivity. It also came well-packaged with clear instructions and even felt more solid than the original battery. I’m genuinely impressed by the quality. If you're on the fence, consider this your sign—NinjaBatt delivered. Highly recommend.

Very inexpensive. But is working great!

Bought this for my wife's old HP laptop that wouldn't turn on unless it was plugged in, and sure sign of a bad battery. It has an older Intel Celeron 2-core CPU, so it's not really good for much, but it makes for a decent laptop for learning Linux. Bought this battery for it, and now I can take it anywhere without it requiring being plugged in 24/7. Good battery life. Easy installation. Only complaint is it could fit a little more snug in the battery housing. Occasionally feels like it could come loose, like the battery lock isn't holding it very well. Other than that, great product. Would buy again if needed.

timely delivery, installed in under 1/2 hour, started right up (remember the computer will not see the battery right away and will reboot itself to correct time etc). Been using now for only two days (maybe 3 hours of file transfer time and web use) and still at 1/2 battery after first full recharge (first of 5 the company recommends) .

good price. fit

Unfortunately this battery died after 4 months, Reaching out to Customer Service at NinjaBatt, my problem was resolved very fast and a replacement was sent overnight. Great service from the two reps I dealt with. Unfortunately there is a problem with something you might buy from time to time. Jolly and Jane took ownership of my problem in a very efficient manner. I thank them for great Customer Service.

So far this battery is perfect. The hardest part of the installation was opening up my laptop. Once you get in, there are about 5 screws to remove and the battery slides right out, installation in the same in reverse. I gave it a full charge before using the laptop. The original battery wouldn't even accept a charge, so everything was dead. It initially took quite some time for the computer to boot up. Now it functions as it's supposed to, I've used it a lot since replacing the battery and I still have 86% power remaining. It holds it's charge well and all the mounting holes lined up as they should. FYI...the laptop went back together faster than opening it.

Buena marca, buena calidad. La duración de la batería es buena. Tras ya casi un año de uso desde la compra, la batería todavía funciona correctamente.

Excelente

Bra pris

Bonne autonomie

En principio no hay nada reprochable. La bateria es perfectamente compatible y su duración es razonable, aunque no puedo indicar exactamente su rendimiento en horas tras una carga completa porque el uso que hago de ese portátil es esporádico.