battery differences

My laptop battery died, and I went to the web to find a replacement.

I found a seemingly limitless supply of the battery, but one of the batteries that is suggested has 12 cells, while my battery has 8.

Does this matter? Can I buy a 12 and use it in place of the 8?

Thanks

Yep. It’ll be bigger, and will stick out of your laptop more, but it’ll last longer.

It’s not uncommon for there to be more than one specification of battery for laptops - one that is standard size and another that contains more cells and offers longer running time (usually at the expense of being a bit bigger and sticking out the back a bit, or raising up the rear end).

If it’s the right brand and it says it’s for your machine, it’ll be fine. If it’s a compatible, it’ll be as fine as an off-brand product can be. If it’s the wrong battery for your machine, it almost certainly won’t fit into the battery space at all - as there seems to be no standard physical shape or size at all for laptop batteries.

If it is the type that raises the back up a bit that may help with keeping the laptop cooler, so if your laptop runs hot it may be worth it.

what’s the voltage of the battery?

Hell, I don’t know. I am holding the thing in my hands as I type and I can’t see any voltage numbers.

I don’t understand this idea of it will be bigger/longer and stick out the back. This is an 8-9 inch battery which “clicks” into place underneath. I’m not sure how it would be able to make the proper connections if it doesn’t fit.

what kind of laptop? these batteries usually use cylindrical lithium ion cells (typically the 18650 size) and a higher capacity version will add another “stack” of cells in parallel. e.g.:

standard capacity

high capacity

The other thing I will caution you about is that a lot of the batteries out there are third party knockoffs from unknown Chinese manufacturers, and may not actually work out of the box. These batteries have circuitry inside that monitors cell state and controls charging, and the laptop’s firmware needs to be able to communicate with that. Some of these battery vendors want you to install a dodgy “BIOS update” to make it work, and IMHO the hell with that. If it’s still available from the laptop manufacturer, it’s far better to get a legitimate battery from them.

A higher capacity battery will be bigger in one of the directions not critical to it fitting onto the recess in the laptop body. Instead of fitting flush, it will click into place and there will be a ridge or bump on the outside profile of the machine

jz78817

Thanks for the pictures. I could not picture in my mind how the larger battery would look, but now I see perfectly.

I also was unaware of the issue regarding chinese batteries. That’s kind of surprsing considering all the people that would need to buy a battery.

I don’t want to buy from HP, since the battery that came with this laptop was a big pile of dung too.

what was wrong with it?