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ISDT

ISDT C4 EVO Smart Battery Charger

  • 6 independent slots, each with its own mode
  • NiMH, NiZn, Li-Ion, LiFe, LiHV and 1.5V Li-Ion
  • AAA, AA and 10440 to 26700 sizes
  • Charge, Discharge, Storage, Cycle, Analyze, Activate modes
  • 2.4 inch LCD shows voltage, current, capacity, internal resistance
  • USB-C input, needs an 18W or higher QC/PD adapter
  • 1.5V Li-Ion: charge only
  • 1 year warranty, USB-C cable included

Updated 25 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A six slot smart charger and analyzer that tests, cycles and revives rechargeable batteries as well as charging them. The wall adapter is not included, and a weak USB charger will not run it properly.

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ASIN: B09YLWM3MSModel: C4 EVOCategory: Battery Chargers

Overview

A workbench or hobby desk full of flashlights and remotes is where this ISDT charger is at home, handling AA, AAA and lithium cells in independent slots. Each slot can charge, discharge, cycle or analyze, while the LCD shows voltage, capacity and internal resistance.

Choose it to learn the real condition of your rechargeable batteries, not just to top them up.

Who it's for

Flashlight collectors, photographers and hobbyists who rotate many rechargeable cells get testing and recovery tools beside charging. People who just want to top up a few AA batteries from the wall will find it more than they need.

Pros and cons

Pros
  • Six independent channels
  • Testing and analysis modes
  • Wide chemistry support
  • Fits AAA through large lithium cells
Cons
  • Wall adapter not included
  • Needs a fast USB-C adapter
  • Fewer modes for low voltage lithium cells
  • Some chemistries need manual type selection

Performance notes

Each slot runs its own program, so one cell can charge while another discharges or measures capacity. Readings of internal resistance and capacity reveal tired cells before they fail in a device. Stable operation depends on a USB-C adapter that supplies enough power.

Specifications

BrandISDT
ModelC4 EVO
Dimensions & fit
Battery sizesAAA, AA, 10440 to 26700
Item Dimensions D X W X H3.62 x 4.72 x 1.34 inches
Item weight0.26 kg
Power & efficiency
Battery chemistryNiMH, NiZn, 3.6/3.7V Li-Ion, LiFe, LiHV, 1.5V Li-Ion
Compatibility & installation
Adapter requirement18W or higher QC/PD USB-C adapter, not included
Included components
Included ComponentsCharger, USB-C cable, user manual
Warranty & support
Warranty Description1 year
Other details
Number Of Ports6 independent channels
InputUSB-C, 5 volts, 3 A
ModesCharge, Discharge, Storage, Cycle, Analyze, Activate
Display2.4-inch LCD: type, voltage, current, capacity, time, internal resistance, temperature, curves
Specification MetFCC

Frequently asked questions

Does the ISDT C4 EVO come with a wall charger?

No. The box holds the charger, a USB-C cable and a user manual. Use an 18W or higher QC/PD USB-C adapter.

Can the ISDT C4 EVO analyze 1.5V lithium AA batteries?

No. 1.5V Li-Ion batteries support charging only, not Discharge, Storage, Cycle, Analyze or Activate.

Can the ISDT C4 EVO charge different battery types at once?

Yes. Each of the 6 slots runs independently, so different chemistries and modes can run at the same time. Ni-Zn and LiHV need manual type selection.