Trustfire 21700 4000mAh 3.6V - 3.7V PCB Protected Li-Ion Battery

Item number: 100817

Hersteller
: Trustfire


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The first 21700 PCB protected battery from the price-performance winner Trustfire. Many times in the past Trustfire batteries have been dragged into the bad light by plagiarism and name similar brands. Nevertheless, Trustfire kept its name and developed into a torch manufacturer that can compete with the big known manufacturers. The industrial cells used for the construction of the batteries come mostly from premium manufacturers located in the Asian region whereby the costs could be drastically reduced.

Trustfire S21700C-4000mAh with integrated protection electronics.

Electronically (PCB) protected against over-voltage, under-voltage, short-circuit and reverse polarity. Fields of application: Torches, industry, LEDs and model making.

Please note the dimensions of the cell before buying! Due to the built-in electronics, the cell is not suitable for every application!
Height and diameter are larger than a standard 21700 cell without PCB.

Capacity 4030mAh
Minimum capacity 4000mAh
Rated voltage 3.6V - 3.7V
Charging end voltage 4.25V ± 0.25V
Final discharge voltage 2,75V
Charging current 0.xxA - 2A
Protection integrated PCB 12A
Positive pole raised (button top)
Chemistry LiNiCoAlO2
Diameter 21.70 mm ± 0.3 mm
Height 75.40 mm ± 0.3 mm
Weight 65±0,2 g
Charging method CC-CV

Safety instructions:

Please note that lithium cells may only be used by competent persons.
Incorrect handling or short-circuiting may result in fire or explosion.

Further properties:

Lithium-ion batteries are thermally stable and are not subject to memory effect.
They work on the basis of lithium and are characterised by a high energy density.

Charging current standard up to 2.00A
max. charging current 1C 4A
Standby current 1.0uA - 3.0uA
Operating temperature charging 0 °C - 45 °C
Operating temperature discharging -20 °C - 60 °C

Notes:

A special charger is required for charging lithium-ion batteries, which charges the batteries according to a special charging procedure. (CCCV = constant current, constant voltage.) The batteries must not be charged above a voltage of 4.2 volts, otherwise there is a risk of fire and explosion. It is advantageous to charge the batteries only up to approx. 4.1 volts, as this significantly increases the service life or the number of charging cycles (possibly up to double). Only lithium ion chargers may be used for charging. However, the cheap chargers sometimes have the disadvantage that they do not switch off safely at the end of the charging process, but continue to charge the batteries with a small charging current, which can be dangerous.

Furthermore, rechargeable batteries and batteries do not belong in household waste! Please dispose of them as prescribed by law at the municipal collection points or in the [usually green] containers provided by retailers.

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Versandinformationen

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Versand und Zustellung Montag - Freitag

Für die Länder Schweiz und Liechtenstein fallen lediglich die Nettopreise der jeweiligen Artikel an, ohne deutsche MwSt. Die Verzollungskosten werden separat berechnet. Bei Einfuhr müssen die Steuern des jeweiligen Landes beglichen werden.

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