Received the battery yesterday, removed my old defective OEM-factory battery. I installed this new battery. It fits ok, the the new wrist rest is actually not bad as far as size is conserved. I kinda like it, No problems with the fit. It was charged to 80%, I charged it to 100%, it lasted 1.1/2 hours with the screen set to good brittleness and the laptop set for (balanced mode=Windows automatically balances performance with energy consumption. I could have set it for power save economy mode but I wanted a standard baseline test) the battery went dead with 16% on the meter, it just died suddenly. Charged it a second time in the laptop too 100% this time it lasted 1 hour and 45 minutes. I was on the internet running a movie(streaming) and working on Microsoft office. This time it lasted until the battery meter was at 2% and it gave me the warning " save work or plug it in". I'm testing the battery and breaking it in at the same time in a proper manor (in my opinion)...
I put this on my wife's D620 to replace a dead battery. This has way more battery life than the original ever did. You can't go wrong with this, and at this price it's a no brainer.
Initially, when you plug it in your laptop may say it only has 2-3 hours of use and I'm thinking that's because it's calibrated to the stock battery or something. I think that this battery lasts 8 hours at least. I could probably do some sort of scientific assessment, but regardless I'm real happy with this.
I was a little worried about the black battery extension, but on the D620 at least, this comes out the front. It actually does not bother me and provides a better surface for the heel of your hand when using the trackpad. I consider it a plus.
Product arrived quickly and is performing exactly as expected. I get 3 plus hours on battery at a fairly high brightness setting. The lower you can use the brightness really extends the battery life. Be sure to deplete and recharge completely a couple of times at first and the battery will continue to take a full charge. Very satisfied with the product and ordering experience.
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