I am searching a good and cheap 5c li-mn self balancing cell, preferably in the 26650 format. I ordered 2 of the 4ah cells from bmsbattery for testing and they seem to perform like crap. I will do a capacity test at 5A with a RC charger and some inbalance tests. I will then try to rig up something to get a semi-accurate 4c graph, but maybe someone has already tested this cell? Good point, it is very easy to solder on both terminals with minimal heating.
http://www.bmsbattery.com/li-ion-cell/1 ... cells.html
I know the E-moli 26650 2.9Ah was used in the older Zero packs, and it seems to be a nice cell! They seem to have a energy density lower than the bms battery stuff but at least they can crank up the amps. I searched ebay and some results came out, but all the cells come from china, not good for stuff suposely made in canada
where to get some?Of course there is the konion (sony VT cells) 18650 1,5ah, found in the Bosch Fatpacks and other tool powerplants. Those can be had for cheap salvaging defective packs but making a battery out of them takes a lot of time, sorting the cells, soldering them in subpacks ext... Plus they do not seems to be available "new" but maybe someone have a supplier?
Those looked interesting too, but nobody found a source? viewtopic.php?f=14&t=3418
Any obvious options to consider?
I used to happily slurp 1,200 watts sustained out of a single fatpack all the time. Great packs... when they were affordable. 