NinjaBatt Battery for Dell J1KND N7110 N5010 N4110 N7010 3750 N5110 N4050 9T48V M5030 N5030 3550 N5050 N5040 3520 17R 1540 4T7JN P20G N4010 3420 M5040 15R - High Performance [6 Cells/4400mAh]

I got one of these a couple years ago for my 7110 and I always thought it was defective or incompatible with my Dell 7110 because it wouldn't charge. What would happen is that the battery light would alternately flash orange and white and the laptop wouldn't charge. So I figured I'd try another one so I ordered a new one and plopped it in and same behavior - no charge and wildly flashing battery light.I thought great my old 7110 is done and I need a new laptop. But before committing to a new laptop, I did some searching on this flashing light issue. Some folks said it was the power adapter but the bios recognized it as a 90w adapter. Others said it was the power jack - gets broken somehow. Others said it was Windows software, etc, etc... Somehow I stumbled across a Dell troubleshooting site and a person had posted a fix that corrected this issue on their 7110 - so I thought what have I got to lose (this only applies to the 7110 afaik so don't try this on other Dells and if you do, it's all on you!!!):Boot up Windows normally with AC adapter plugged in.While Windows is booted - remove the battery pack - yes - remove the battery pack while windows is running. Just take it out...do it! Windows continues to run but it will indicate that the battery is missing.Open Device Manager and click on the Batteries entry: Delete the AC adapter and the compliant batter y entries. Uninstall them completely.Reboot with the battery pack still out of the laptop and get to the Windows desktop. At this point the battery light should be out completely and there will be an X in the battery icon on the task bar. Now reinsert the battery pack - yes - put the battery back in the while Windows is running. Some things will happen.Reboot.When my 7110 came back up, the battery started charging and the light was a solid white while the battery charged. No orange/amber light was seen and it fully charged the new pack from 80% (out of the box) to 100% in about 30 minutes.So with all that said and done, I have two battery packs and a working laptop. These lithium packs are nice and pretty solid so I give them a 5. They fit without drama and seem to charge fast and hold a charge longer than the OEM pack did.Thanks

When I charged and installed the battery it started showing static lines across the page immediately. I sent the seller an email about the issue. They sent me a list of options as to how I return it. I chose to have them pick it up at my house. This is the turn around schedule:I receive the first battery: 10-26-21I contacted the supplier: 10-27-21Supplier picked up the battery: 10-28-21I received the new battery: 10-30-21The new battery has been working fine. The price is exceptional compared to the cost of the original battery.

Received and installed yesterday, charged for 24 hours. So far working perfectly and holding a charge really well

This battery had ok life, not sure what it's supposed to have, but mine had about 90 minutes of battery life before it needed charged again. When it got down to the last 20% it went pretty fast though. Easy to install, fits exactly like the original factory one in my Dell Vostro 3550. For $28 I guess it's an ok deal. Definitely useful if you want to take your laptop anywhere for a short amount of time without it needing to be plugged in. My original one had about 3 minutes on it before it died so this battery has a useful amount of time to get some things done. Shipped quick and packaged well.

Last battery only lasted6 months.

This is my second purchase from this company and they are outstanding. When I realized that I needed another battery, I did not look anywhere else. They actually sent it sooner than promised, and as usual it was packaged very well and works perfectly. My laptop is over 10 years old and serves me well. Being able to get a new battery at a reasonable price has certainly helped me avoid expenses that I don't need or want. I think NinjaBatt is the best and I highly recommend them.

Excelente, muy bien!!

I purchased the NinjaBatt Laptop Battery for Dell J1KND Inspiron N5110 N7110 N5050 N7010 N5010 N4110 N4010 N5040 N5030 M5030 3520 15R 17R Vostro 1540 3750 3550 312-1201 312-0234 - High Performance [6 Cells/4400mAh] on February 19th and received it on February 21st.On February 23rd the battery was placed into the laptop (Vostro 1540) and the battery registered a 70% charge. Fifteen minutes later the battery ran down to 0%. We have been trying to charge the battery since then then but to no avail.There was no physical damage to the shipping box and we have tried using another charger.Contacted Amazon regarding the defective battery and was told to contact the seller who is telling me to contact Amazon. WTH!!$30 for a piece of junk and now the run-around to get the issue addressed. I sure didn't give them the run-around when it was time to pay so why am I getting the run-around to get a replacement or a refund?

It's early days but it appears to work well although the start up instructions were slightly contrary to the instructions on the English part of the small Chinese leaflet, which was also enclosed.

بائع غير أمين لا انصح الشراء منه. أرسل بطارية عادية وليست النوع المعروض.كنت ناوي استرجعها لكن احتياجي لبطارية لم استرجعها. رجاء الحذر

Le Laptop Dell inspiron N5010 ne reconnait pas la batterie, la batterie NinjaBatt est inutilisable et ne se charge pas.Mis à jour des driver, rien n'y fait ...

Aunque la durabilidad es difícil de evaluar, ya lleva un tiempo funcionando sin ningún tipo de problema.

The battery appears to be of good quality and fits well like the original oem battery. I have used for 2 weeks on and off. Everything is working well so far. Fully charges and hold a good charge. Tip: to calibrate battery, I initially fully charged this battery and left the charger connected for an additional hour. I then used my laptop on battery power (ac power off) until the low battery warning. Then fully charge the battery and use normally. Keep in mind there are other factors that affect battery life, such as a fan on high all the time, due to overheating (clean cpu fan and reapply thermal paste) or screen at maximum brightness. Really happy with purchase.