for Dell Latitude 7480 7490 7390 7290 7280 7380 E7280 E7290 E7380 and more

During discharging after 34% the percentage dropped to 7% in a moment.Charging to 100% was too long. Need to repeat the cycle to examine the characteristics...2025 Mar 2:- Behavior is correct, works as expected.- Windows 10pro makes crazy estimates, switches between the power modes but the battery is actually OK, when testing dynamics.

Laptop Battery is good and charges.

I was looking to hopefully save a little money on a battery replacement for an aging Acer Predator Helios 300 laptop from 2019 I was doing upgrades on to extend its lifespan. Worked well for all of about 3 weeks then would no longer take a charge even after a battery reset and full discharge. Maybe others have had better success with theirs, but QA seems to be absolutely atrocious with these batteries from seeing other reviews mentioning the same thing. I would steer clear of this brand if at all possible.

Seems to be a bit of a break-in period. Run it low a few times but not all the way down. Charge it to 90% a few times, then go back to charging it fully while gaming, editing video, etc. Grateful to have a working internal battery again in my Acer Predator Helios 300.

EDIT:Seller is very hard to get ahold of. Even doing a google search doesn't lead to much and amazon was next to no help. HOWEVER the seller did reach out and made things right. They asked some questions but stood by their product. While I am not happy with product due to it failed on me I will say the seller did everything that they could. If they was easier to find/get a hold of I would order from them again.When I first got the battery I got it installed it worked fine for about a month. Today I booted up laptop and it was no longer accepting a charge. I tried to reach out to seller to ask a question and get support, However when I did this I got redirected to amazon chat support who basically told me that I was out of luck. I guess I shall try to google information about seller to try and contact them outside of amazon website. If you buy this battery make sure to contact within 30 days or seller and or amazon will not help you at least not yet. I will update this if I get it resolved.

Compré esta batería esperando que fuera compatible con mi Acer portátil, pero lamentablemente resultó más pequeña de lo esperado y no era el modelo que necesitaba. A nivel de presentación y empaque, todo venía en buen estado, y se notaba bien construida. La devolución fue fácil, así que agradezco eso. Recomiendo verificar muy bien el modelo exacto antes de comprarla.

Not a lot to say except the price was exception and, I like the quality of the containment. It holds a charge as expected but, the one thing I woud like to express displeasure about with ACER, and I'm still very hot about this...I bought a 2032 battery for the CMOS so I could do both at once and you IDIOTS have a proprietary seal and connection for a simple CMOS battery.

Very easy plug and play, exactly like the original, I am happy with my battery