Hello there I just recieved my Sigelei 150 along with a nitecore i2 charger and four samsung 25R batterys. I have been using my ipv2 and just use usb charge. So i have questions about batterys. I bought four 25r so i can swap when dead. I heard you need to marry batterys. So that means since i have four. I have two pairs and i have to keep the pairs together and make sure i dont mix the pairs? I have also heard series box mods tend to make one cell dominant and drain one more then the other so you should switch the cells places around 50% charge. Is this true should i do that.
All good info. I have 2 pairs of batteries for my Sig 100, labeled 1-4 with a Sharpie (it eventually wears off, so you'll have to re-mark them every couple months). 1 and 2 are always in the mod together, same with 3 and 4. I also notice that one side does seem to draw a little more, when I put them on my charger the dominant battery usually starts with 0.1v lower charge - this has become more prevalent as they've aged.
Also, probably a good idea to swap out around 50%, or 3.7-ish volts remaining, just like you would a mech. I decided to run mine as long as they'd keep running instead. When they were new, they'd draw down to 12-15% before crapping out and refusing to give me the 50-60 watts of power I normally use. Now they're dying closer to 30% after about 100 charge cycles. I'm guessing I'll get them to 150 charge cycles in total before I burn them out, which is about twice as fast as batteries should wear down. Next time I'll start swapping them out sooner to avoid damaging the cells and cutting their lifespan short, as I inadvertently did this go-round.
