NinjaBatt Battery for Samsung AA-PB9NC6B AA-PB9NS6B NP300E5A R540 RV510 | Fits AA-PB9MC6B AA-PB9NS6W NP300V5A NP305V5A NP355V5C Q430 RC512 RV515 RV511 R530 – 6 cells 4400mAh 11.1V

Perfect! As described, good price. No problems whatsoever. Was worried about compatibility because I’ve had trouble finding other compatible products needed but it’s the right one. Seller was helpful, shipped and arrived promptly. Very pleased.

Easy to install. Fast shipping!! Works great! New life for an old laptop.

I purchased the NinjaBatt for my 10-year old Samsung Notebook 3 laptop. I've been using it for about 2 months now and it seems to be performing very well. The included instructions were a bit confusing. A "Supplement Illustration of Laptop Battery" card says to let the battery totally discharge and then recharge completely for 2 cycles before regular use. The instruction booklet says to discharge to 10% and fully recharge for 5 cycles. I used the 10%, 5-cycle method since I usually don't allow my battery to get to 0. I'm glad this battery was available to let me get more life from the Samsung laptop which has been a real work-horse.

I bought this battery based on it having safety circuitry to guard against overheating from too much current draw. It fit perfectly and I followed the instructions on breaking it in for optimal charging. So far so good. No complaints.

Item as described. Arrived quickly!

Saved a decade of life memories by bringing my old laptop to life. I couldn't find my charging cord and my old battery died. Plugged this one in and it was a perfect fit. Came partially charged which allowed me to fire up my old Samsung laptop and gave me the chance to get some files and time to get a charging cord. Keeping this as my backup battery. Highly recommend.

This is battery worked great as one would expect on Samsung laptop. We also purchased Ninja battery for Lenovo laptop, it is still working fine ~ year later. So.... hoping both batteries hold up for the long haul. Such positive results are not always the case w/ other brands in the past. 5 stars.

Working great so far! Now my laptop is usable. 6months so far, no issues

I did not want to spend too much money on a 13 year old laptop. I think the price was reasonable and the battery specs met my needs. I purchased this NinjaBatt knowing that the original battery capacity was 57Wh (5200mAh), but this NinjaBatt was only 49Wh (4400mAh). Note that the battery needs to be cycled 5 times on first time use: use the battery until the battery level reaches 10% before connecting the AC adapter and fully charge the battery - do this 5 times. So far, I completed one cycle and the performance of the battery is good. The battery lasts about 3 hours before needing to be recharged. I am happy with this NinjaBatt and I recommend it.

Laptop werkt weer als nieuw.

Good product

Cette batterie fait le job pour les model cité , de mon côté je n'est pas eu la chance d'avoir la bonne batterie ! Elle n'est pas compatible ( du moins si elle et sauf qu'il Y'a un petit décalage de 3mm entre la fiche et le plastique ) donc elle ne rentre pas dans son emplacement . Pourtant j'ai déjà acheté de nombreuses batterie chez ninjabatt

Funktioniert einwandfrei