which are the best 3.7V lithium cells

[dogman dan]

Yeah, I'm perpetual liar. That's how you get your name in light blue.

I replied, too sarcacticly yes, mentioning lifepo4 which might do 1000 cycles.

 

[chilledoutuk]

Honestly though if you think about it 18650 cells are not competing with hobbyking Rc packs as with 18650 cells
it requires a huge time investment to build a pack properly but with the benefit of best in class energy density
and cell reliability.

Whereas the hobbyking batterys are a ready made solution all you have to do is cycle the packs to check if there ok
then wire them up and put them into a case.

The only beef i have is when people talk about c rate of cells what people fail to forget is that yes you might have
to build a higher capacity battery for the same power output but because of the energy density of the 18650 cells it
doesn't mean a significant increase in weight.

The only issue I personally have with hobbyking packs is the shelf life of packs stored with charge and there resistance
to puffing for no good reason.

 

[amberwolf]

Not true. Left off the charger a few hours a full battery is 12.7-12.8V, empty is 11.9V.

I don't know what I was thinking; I'm sure you're right. Been too long since I actually stuck a meter on SLA, I guess.

 

[999zip999]

You are best off just buying a good battery like a Cellman A123 as it will be more trouble free and cheaper in the long road. As to give you a yes answer to met your needs and questions to shape a hobby battery as it's harder for everybody to give a yes answer for you. It's best off to get a plug and play from all your questions.