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ISDT C4 Smart Battery Charger (25W) (US Plug)

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ISDT C4 Smart Battery Charger (25W) (US Plug)


Now save save $11.40 $11.40

Special Price $59.99 $59.99

You save save $11.40 $11.40

Was  $71.39

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Supporting almost all battery types, the ISDT C4 is a high-performance smart charger. Featuring a high angle visible IPS display, the battery charger shows detailed parameters and task progress. Each battery type can be charged independently using a designated port. The charger will immediately identify the battery type and match with the appropriate charging strength.

Protected by a strong aluminium case, the ISDT C4 charger is able to analyse, activate, cycle and store power. The C4 smart charger is compatible with Li-Ion, LiHv, IM-R, IN-R, NiMh, Ni-CD, LiFeP04 and Eneloop.

Charging Model: ISDT C4
Input Power: DC 12V-24V/2.5A
Circuit Power: Max. Charge Power 25W, Max. Discharge Power 10W
Battery Count: 1-4 single cells, cylindrical
Battery Size: AAA; AA; 10440; 10500; 12500; 12650, 13500; 13650; 14500; 14650; 16650; 17650; 18650; 20650; 22650; 26650
Operating Voltage Range: 0.2V-5.0V/slot
Battery Chemistry Type: NiMH, NiCd, Eneloop, Li-Ion, LiHv, LiFeP04
Charge Current Range: 0.1A-3.0A/slot
Discharge Current Range: 0.1A-1.5A
Operation Modes: Charge, Discharge, Storage, Cycle, Activation, Analysis
Cycle Count: 1-66 cycles
Display: 320x240 IPS LCD
Beep Sound: Multi-Tone
Temperature Sensors: 5 for inner
Operating Temperature: 0°C - 40°C
External Ports: DC Input, Micro USB, USB power output
USB Power Output: DC 5V / 2.1A
Dimensions: 122x85x38mm
Weight: 153g 
Plug: US

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vloos | Verified Buyer

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  • Overall
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Really good charger

Jan 24, 2019

This charger is multifunctional, but still easy to use. The infos for each battery are detailed (and useful to assess batteries). I'm impressed by this charger and use it a lot.
There are some minor cons: The maximum length of 18650 cells is limited to 67.8 mm by the slot length. Some protected 18650 cells are longer (so I made the slot longer by milling a groove for the "+" terminal). The fan gets a bit loud when multiple cells are charged quickly (at low current the fan is silent). Small foam pads under the charger do help against vibrations.
Really important, if you plan to charge Lithium-Ion cells: update to firmware version You can check the version in Settings -> System Information, e.g. "OS". You need only a micro USB cable for the update. The firmware and the updater are here
Just a detail for experienced users: the shown cell voltage during charge/discharge is usually equal to "OCV" (open circuit voltage), wich is measured by interrupting the charge/discharge for a short time (50ms). The idea is interesting, but unusual and does not work for slowly reacting cells (some aged Lithium-Ion cells and probably all LiFePO4 cells).

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