Before you buy
Good to know before buying
01
Check your mod's requirements
Different mods specify different cell sizes (18650, 21700) and continuous-discharge ratings. The number stamped on the mod is the only one that matters.
02
Cells ship at storage charge
Shipping regulations cap lithium cells at around 30 percent state-of-charge. Charge to full in an external charger before first use.
03
Always in pairs (or as specified)
Dual-cell mods need matched pairs — same brand, same age, charged together. Mixing pairs is the most common cause of imbalanced discharge.
