Laptop Battery Cell Replacment

Hey lains, I've just come into possession of an old zt3000, but unfortunately it only has a 3 hour battery life so i'm looking to replace the cells in the battery to newer 18650's but the unit seems pretty sealed and I've got no goddamn idea how to replace these cells, Have any of you guys done anything like this before?

I reopened some old laptop battery to make my own powerbank to charge my phone, but cells turned out soykaf useless so I threw the whole project on side. I guess I can add something useful to conversation. My laptop battery had two half "cups" that were sealed shut together to form the battery itself. I simply used a really sharp knife on that area couple of time until it simply popped open. Then, there were two rows of 3 batteries that were welded together by little magnesium strips. If you don't want to damage your batteries by soldering them with iron, as when you heat them you damage their properties I then suggest using a small battery welder you can find on ebay or somewhere. Or even build your own from old microwave (or big transformer). Anywho, thats it. There will be few wires attached to internal battery electronics that keeps the batteries safe from overcharge or overdischarge. Other than that batteries will just get out simply.

>>135 adding to this, most glued together cases will pop open if you put gasoline on the seam. Wet a paper tissue with gasoline and press it all along that seam line, trying to squish some inside. Repeat a couple of time and you should be good to go. By the way, it's cheaper to just buy a new one, unless you have a good source for the cells. Don't trust too cheap chinese batteries because they aren't good, and remember that the max capacity of a 18650 is about 3500 mah, everything over is a lie and most above 2000 are lying too if chinese.

For real be careful though, batteries can be dangerous

>>397 >Tfw was 14 years old >brother in law gave me an old laptop of his that he wasn't sure if it worked anymore >there wasn't a powercord for it >i had always wanted my own laptop to use >ordered a $10 powercord off of amazon >a cheap, chinese powercord >A bit less than half of the $10 was shipping >got the powercord and started using it >i was not realizing that the battery held less and less of a charge over time after charging it with this soykaf power cord >came into my room one time where the laptop had been charging >smelt of burnt electronics >powercord was kill >it had only lasted like two months That was the last time I was dumb enough to buy any of the cheap Chinese chargers or batteries. If you're gonna buy a knockoff, at least make sure you're not buying the cheapest of the cheap knockoffs.

>>407 >battery held less and less of a charge over time >after charging it with this soykaf power cord the battery life tough is mostly unrelated tough regarding the adapter choice, as it is charged by an internal controller. I say mostly unrelated tough, because as you pointed out, those cheaply constructed adapters tend to not follow security specifications. all it takes for a worst case is a shortage directly from the mains, over a well-intentioned but uninsulated EM-shielding directly into the output cord, sapping the input socket of your device. back to the observation tough, the effective battery capacity typically follows a rapid drop after a certain number of charge cycles due to deterioration of the internal structure holding said charge (see pic related). that said the battery was already dying naturally, no need to Cry.jpg >cheap Chinese chargers like they say, buy cheap, buy twice. sometimes tough, you might find yourself tricked by a second-hand hardware broker, so don't trust anything ordered on-line. it's only 20$ anyway for a store-bought one, plus you don't have to wait for delivery.