WARNING: This product contains nicotine.
Nicotine is an addictive chemical.

Site Information

 Loading... Please wait...

MXJO 21700 4000mAh 20A Battery


MXJO 4000mAh 30A is one of the best 21700 batteries available, MXJO 21700 battery is well known for its high performance and excellent safety standards: overcharge, over-discharge, overload & overheat protection. High capacity, low inner resistance, long cycle life, low self-discharge. Strong current charge and discharge capability reached IEC standard.




MXJO 21700 Battery

MXJO 21700 Details:

Brand: MXJO
Size: 21700
Nominal Capacity: 4000mAh
Nominal Voltage: 3.7V
Maximum Voltage: 4.2V
Discharge Current: 20A
Maximum Continuous, Rated 30A Maximum Pulse
Approximate Dimensions: 21.7mm x 71mm
Approximate Weight: 69g

Product Reviews

Write Review

Showing reviews 1-5 of 10 | Next

  1. TRUE 20A CDR RATING 5 Star Review

    Posted by on Feb 4th 2020


  2. Fat Batt 4 Star Review

    Posted by on Jan 14th 2020

    Works as advertised - be aware, it is bigger than 1st Gen(?) 21700's. I have to force it into my nitecore I bought back in my 16850 days...it's slightly fatter and longer. Ordered an Xtar 4 slot(on site) charger with a second 21700.

  3. Five Stars for Various Units 5 Star Review

    Posted by on Jan 7th 2020

    I love these batteries and they work flawlessly in my Nunchaku 2, but they are too large for an Innokin Plexar.

  4. GOOD POWER 5 Star Review

    Posted by on Dec 29th 2019


  5. MXJO 21700 Battery 5 Star Review

    Posted by on Nov 20th 2019

    Excellent battery for the price , Love the tech that goes into it too !

Showing reviews 1-5 of 10 | Next

Best Vape Deals Best Vaping Juices Vaping Reviews

Join Our Mailing List