Features:
Dimensions: 143 x 99 x 36mm
Integrated LCD panel clearly displays charging parameters and progress.(Biggest difference with Digicharger I4)
Each of the four battery slots monitors and charges independently.(No this function on I4)
Capable of charging 4 batteries simultaneously
Compatible with and identifies Li-ion, Ni-MH and Ni-Cd rechargeable batteries.
Optimized charging design for IMR batteries
Two conveniently located side buttons allow easy selection of specific battery types and charging parameters
Intelligent circuitry detects the battery type and status before entering automatic charge mode (CC, CV, dV / dt)
Automatically detects battery power status and selects the appropriate voltage and charge mode
Automatically stops charging when complete
Over-charge prevention & Temperature monitoring to protect batteries
Reverse polarity protection

Battery Activation:
For every installed battery, the D4 will activate the battery by charging it for six seconds at a low current.
If zero voltage is detected, all three yellow power indicators will blink quickly.
If activation fails the first time, please remove and reinstall the battery once again and activate for the second time.
Note: The D4 is not recommended for use with over-discharged (zero volt) UNPROTECTED Li-ion batteries.
Li-ion batteries without a protection circuit can potentially cause a fire or explosion.

Specifications:
Input: AC 100-240V 50 / 60Hz 0.35A (MAX), DC 12V 1A
Output Voltage: 4.2V + / - 1% / 3.7V + / - 1% / 1.48V + / - 1%
Output Current: 375mA x 4 / 750mA x 2

Note:
There is a CE mark on the charger, so it is available for Eurpean customers.
This charger is compatible with following batteries: Li-ion / IMR / LiFePO4: 26650, 22650, 18650, 17670, 18490, 17500, 18350, 16340 (RCR123), 14500, 10440 Ni-MH / Ni-Cd: AA, AAA, AAAA, C

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If you find a product to be authentic, then it is not a clone. Authentic Nitecore D4 Four-Slot Digicharger for 26650 / 22650 / 18650 / 17670 / 18490 / 17500 / 18350 / 16340 (RCR123) / 14500 / 10440 Ni-MH / Ni-Cd - AU Plug, review, price, shipping

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All the sizes are measured manually, please allow tiny differences due to manual measurement, thanks.

The parameters are for reference only; The details are subject to the official / manufacturer; Please tell us if there is any error.