Product Description LG 18650HE2 2500mAh Chemistry: Li[NiMnCo]O2 (H-NMC) / Graphite + SiO Official Max Continuous Discharge Current: 20 amps Positive terminal type: Flat Top Diameter 18.3 +0.2/-0.3 mm Height 65.0 ± 0.2 mm Weight: Approx 45 grams Initial Internal Resistance measured in megaOhms with a 1khz AC signal: Specified 15, Actual 12 to 13 Initial Internal Resistance measured in megaOhms with a DC signal: Specified 30, Actual 21 to 22 Nominal Voltage: 3.6 Max Charge Current: 4 amps Please note: We have the offical internal test data from LG showing this battery handling a continous 35 amp discharge load. We are waiting to get permission to publish the graph / test data and also clarification on why LG chose to rate the "Max Continuous Discharge Current" as only 20 amps when their tests show the batteries handling 35 amps. That said, The manufacturer has stated that this is a "20 amp battery" and you should treat it as such until you have information that proves it can handle more. Use at Your Own Risk. By purchasing this item, you agree that Vapor Kings is not responsible for any damage to property or people that may happen through your use of these batteries.