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Chargers for your Li-ion/IMR batteries
Ideal for quickly charging pairs of high-capacity cells
I'd like to throw in a recommendation for the Nitecore SC4 charger, which is ideal for anyone who uses 18650s in pairs or triples.
The 18650 cells we use for vaping are usually lithium ions with an effective capacity between 2000 and 3000mAh. 2 amps is the sweet spot for charging these, and some cells can even handle a 3A quick charge.
But what distinguishes a $50 charger from a $15 charger?
Every charger has a maximum current limit per cell. Many will do 2A, some are limited to 1A.