The Samsung 25R is a very good 20 amp, 2500mah battery.
There are a few options of 20 amp batteries which have 3000 mah, which should allow you to vape a couple hours longer per battery.
Samsung 18650 30Q, 3000 mah 20 amp CDR
AW 18650 3000 mah 20 amp CDR
Sony 18659VTC6 3000mAh 20A CDR
LG 18650HG2 3000mah 20 amp CDR
Concerning the 26650 batteries, check Mooch's
I couldn't get the
@Mooch ratings table to enlarge enough to be useful. You could go to my blog
Battery Basics for Mods: The Definative Battery Guide for Vaping and there at the very end of the article there is a short list of recommended 26650 batteries. Be sure to find the tested CDR (amp rating).
Not an updated list from Mooch:
Top Performers (in alphabetical order)
- Basen Black 60A 4500mAh (*tested as a 25 amp continuous)
- Brillipower Green 80A 4500mAh (*tested to have 25 amp CDR )
- Efest Green 20A 4200mAh (*tested to be 20 amp CDR)
- Efest Purple 40A 4200mAh (Not recommended yet due to the one dud cell)
- IJoy 26650 4200mAh 40 amp (*tested to be 30 amp CDR)
Winner
- MNKE Orange 35A 3500mAh (NOT RECOMMENDED, due to all the fakes being sold)
- MXJO Yellow 35A 3500mAh (*tested as a 25 amp continuous)
- MXJO Yellow 75A 4500mAh (*tested as a 25 amp continuous)
Lg, Samsung, and Sony don't make 26650 batteries, so we are forced to choose among the Chinese manufacturers. Typically, they over-rate their specs.