@Macka17;
You can’t use magnets with the Q8 or the SP36
@d_t_a;
I know the difference between flat and button tops. If you had read my post thoroughly, I did state I had purchased 35E button tops. Your country has issues with LiIon batteries. In Canada they are prohibited to ship by air unless in OEM device. Strangely, Aliya store ships; perhaps they found a workaround?
@Barkuti;
I doubt they are the real McCoy. They do their job in my Q8. I’m getting 21 Amps at tail and the fit is ok. ’Probably good copies or actual Sams but an added flat top welded over. Hence the little higher IR (real 30Qs are in the 20 to 30 mohms) . Don’t buy batteries from China. There is a reason they are not accepted at Canadian Border Services Agency - shady cells.
On that note, there was some debate about BangGood selling legit or fakes. They may have the best intentions, but their supplier may pass some counterfeits. I distrust any nation whose integrity is compromised with “good enough” philosophy, poor communication skills, and just outright plagiarism / piracy. I’ve had my share of issues with all chinese vendors.
But guys, you missed my point. Button tops when needed, I reduce the top wrap. Soldering a blob may be a compromise, but adding heat to the anode creates dendrites and that reduces the current capacity. It also screws up the homogeneity of the electrolyte - bad cell. And then you have to understand the casing is 1020 steel and is solderable with the proper flux to which you must clean thoroughly else corrosion in long term.
So my take to amishbill’s original post, get flat top cells with a good capacity and somewhat high current (> 15 amps*) for all around performance. For the occasional button top necessity, order a few (say 4 + 3 for the Q8 / SP36) that are dedicated to such lights. Or try your hand at removing the insulating paper washer.
- It is not as you will draw 15 amps, but the lower Internal Resistance helps for those bursts of high demand.