7FMXV 63Wh Laptop Battery Replacement for Dell Latitude 5320 7320 7420 7520 Latitude 5320 2-in-1/7320 2-in-1/7420 2-in-1 P133G P134G P135G P136G P138G P139G P110F TN2GY 9JM71 4M1JN 1PP63 15.2V 4-Cell

Dell Latitude 5285This battery replaced the original. Installation was simple and it's been working well.

I purchased two of these batteries for use in aging Dell laptops. The batteries are advertised at 63wh, but they are unfortunately not. The reported battery capacity is only 56wh, so 12% of expected battery life is immediately gone. If it wasn't sold as 63wh and properly listed/marketed as 56wh, I might be happy with it instead it's a bit disappointing and feels dishonest by the company to sell these like this. Even directly on the battery it has a label indicating 63wh.Battery seems to hold a charge properly, but unsure if I will be keeping these just based on the fact that the capacity is not as advertised.

Short lifespan, poor performance, zero customer support. Regret buying this!