The Aspire K3 1200mAh battery is easily charged via USB on the bottom and features 510 threading. The K3 1200 battery works great with most basic tanks and can be used with a 510 to ego adapter to give the option of use with ego threaded tanks.
Aspire K3 1200 mAh Battery Features
Included in package:
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Aspire K3 1200 mAh Battery