01.    NITECORE NL2153i , “i” Series 21700 Rechargeable Battery with :
– 5300mAh Capacity
– 20A Continuous Discharge Current
– ​​Internal Safety Features
– Mercury and Lead Free
02.    New revolutionary and powerful upgrade in “i” series 21700 batteries
(Patent number ZL201820118916.0)    
As a NITECORE patent product, “i” series 21700 batteries are characterized by double polarity on each side and
high energy density . It allows a very efficient energy supply with minimal losses due to internal
resistance.

03.    Unprecedented Battery Performance
The dual polarity on each side of the “i” series 21700 batteries broke the restrictions placed on the
head-tail contact of the lens so that its size and weight could be reduced. Thus, the internal resistance has been
dramatically reduced and offers direct conversion of energy to power the device. Because of the innovative techniques and
technology, this can bring more opportunities in the design of NITECORE lenses.

04.    The large capacity of 5300mAh ensures stable and long-lasting power supply to various devices.

05.    Continuous discharge current reaching 20A, ideal for devices that need high current flow.

06.    Internal safety features
– Built-in protection circuit on the positive pole that protects against over-charging, over-discharging and
short-circuiting.
– A decompression valve is activated in case of a rapid rise in temperature.

07.    Specially designed, high performance electronic protection circuit
– Effectively protects against overcharge, overdischarge and short circuit.
– It incorporates a high-quality battery protection circuit.
– Incorporates a high energy MOS-FEE in the current regulation module for greater efficiency and excellent performance.

08.    External safety features.
– On both sides it is equipped with protective covers made of nickel-plated stainless steel that ensure high
impact resistance, good electrical conductivity and resistance to oxidation.
– It is wrapped by a durable metal film that protects against friction.

09.    Free from Mercury, Lead and Cadmium
For safe use and storage.

10.    It has the ability to cover 500 full charge cycles.
This means economy and environmental protection.
One NL2153i battery can be fully recharged over 500 times
11.    Safe and Reliable
Globally insured and certified by global certificates.

12.    Technical data

Capacity5300mAh 3.6V (19.08Wh)

Diameter22.2mm ±0.3mm

Length77.2mm ±0.3mm

Weight75g

Warranty period12 months warranty from the date of sale