ESYB E4 Intelligent Charger Universal Bluetooth App Control Digital 4 Bay Battery Charger

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The new ESYB intelligent charger has been designed with four battery bays to charge multiple batteries simultaneously.


The ESYB E4 charger has been designed to be remotely accessed via an app on a smartphone device, this will enable you to check on the charging process of your batteries and ensure they don't overcharge.

The ESBY ES charger allows you to select different charging modes and battery voltage per bay, insuring each battery is the correct amount of voltage.

Comes with four battery bays, this ESYB E4 intelligent charger can charger 4 battery at the same time. There is a 2.1 inch sized LCD screen on the top of the charger which is designed to show you the real time charging status. You can download the App on your phone and connect your phone with the smart charger via Bluetooth to know more about the charging progress.


  • Bluetooth connection and App Control.
  • Download the App on your phone and you will get the charging information directly on your phone.
  • LCD screen display charging mode and battery status of all slots.
  • Two charging modes(CC, CV).
  • Each of the four battery slots monitors and charges independently. Capable of charging 4 batteries with different types and different sizes simultaneously.
  • Support Li-ion, LiFePO4, Ni-Mh, Ni-Cd batteries.
  • Automatically select different charging modes with different batteries. Automatically detects battery voltage, identifies Ni-Mh and Ni-Cd rechargeable batteries. Note that Li-ion and LiFePO4 batteries can not be identified automatically and need to set charging mode manually.
  • 0.25a charging current for Ni-Mh and Ni-Cd battery; 0.25A, 0.5A, 1A, 2A options charging current for Li-ion and LiFePO4 battery
  • Automatically stops charging when complete
  • Activation function for Li-ion batteries with protection board
  • USB output port. Can be used to charge phones and tablets when disconnected adapter.


Brand ESYB
Model E4
Type Smart battery charger
Bay 4 bays
Input AC 100-240V 50/60Hz 1A(max)
Output Voltage 4.2V±1%, 3.6V±1%, 1.48V±1%
USB Output Voltage 5.0V±5%
Output Current Li-ion, LiFePO4 batteries: 0.25A/0.5A/1A/2A; Ni-MH, Ni-Cd batteries: 0.25A
Compatible With Li-ion, LiFePO4 batteries:10440/14500/14650/16340/16650/17650/17670/18350/18490/18500/18650/22650/26500/26650
Ni-MH, Ni-Cd batteriesAAAA/AAA/AA/A/SC/C/D
Package Include 1 x E4 Package Box, 1 x Charger(not include batteries), 1 x Sticker, 1 x Warranty Card, 1 x Adapter
More Information
SKU ZP3050250707042
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