This is 12 V 10 A ! At the end of my video I said 12 V 30 amp’s which is incorrect! for some reason I was thinking parallel Connection Which would then be 4.2v at 30amps -had my amps switched around-
( 3 )4.2v In Parallel remains at 4.2v  but doubles your amps. So you have 4.2v 10amps 👈
( 3 )4.2v Paired In Series Is 12.6v your amps remain at 10a
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INR 18650 3500mAh 3.7V High-Drain 10A Lithium Ion (Li-ion) Unprotected Flat Top Battery
MJ1 is a flat top 18650 battery with one of the highest capacities available. INR (lithium nickel manganese) chemistry offers a superior 3,500mAh capacity compared to most IMR (lithium manganese) cells, while having a maximum discharge current of 10A. The flat top terminal design is ideal for use in creating battery packs.
SPECIFICATIONS
Brand LG
MPN MJ1
Color Green
Size 18650
Chemistry Li-ion
INR (LiNiMnCoO2)
Voltage 3.64V
Capacity 3,500mAh
Terminal Flat Top
Protected No
Shelf Life 3 Years
