Battery specs look like gibberish. They're not. Here's what the numbers on your battery actually mean.

mAh (milliamp-hours): Capacity. How long the battery lasts. 1000mAh = about 10 hours of moderate pod system vaping. 3000mAh = about a full day of sub-ohm vaping. Double the mAh, double the runtime. This is the most straightforward spec.

Amps (continuous discharge rating): How much current the battery can safely deliver. A 20A battery can safely power a 0.21-ohm coil at 4.2V. A 35A battery can safely power a 0.12-ohm coil. The amp rating is the most important spec for safety. Never exceed the continuous discharge rating. The "pulse" rating on some batteries is marketing — ignore it.

C-Rating: The discharge rate relative to capacity. A 3000mAh battery with a 2C rating can discharge at 6A (3000mAh × 2C = 6000mA = 6A). This is mostly used for internal battery calculations. For vapers, the amp rating is what matters.

The best all-around 18650 battery for vaping is the Samsung 30T (35A, 3000mAh). The best 21700 is the Molicel P42A (45A, 4200mAh). Buy from a reputable vendor (not Amazon, not eBay). Counterfeit batteries are common and dangerous.

This content is intended for adults 21 years of age or older. Nicotine is an addictive chemical. The information provided is for educational and informational purposes only and does not constitute medical or legal advice. If you are considering using vaping products as an alternative to smoking, consult with a qualified healthcare professional. Product reviews and recommendations are based on publicly available information and independent evaluation; Windbar makes no representation regarding the FDA marketing authorization status of any third-party products mentioned. This content is not a substitute for review by a licensed attorney.

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