Fitorch Lii-M4S four-slot charger feature guide listing independent charging and compatible battery formats

Four-Slot Charger That Also Tests Cells

The LII-M4S charges four cells of different sizes at once and adds discharge, capacity test and storage modes for proper battery care.
Fitorch Lii-M4S charging-settings graphic showing selectable charge and discharge currents beside the LCD

Set the Current You Need

Choose 300, 500, 700 or 1000mA for charging and 250 or 500mA for discharging, from a touch panel that keeps your settings.
Fitorch Lii-M4S working-mode graphic listing Charge, Discharge, Test and Storage with input and output ports

Charge, Discharge, Test and Store

Four working modes walk lithium-ion and Ni-MH cells through a full lifecycle, with voltage, current, capacity and time shown on the LCD.

What's Inside Every Fitorch

Beyond the beam: lab-tested output you can verify, bodies CNC-machined from solid aluminum, free shipping over $49.9 and a 5-year warranty. The details nobody photographs — we obsess over anyway.

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Specifications

Key Specs

Slots: 4 independent charging channels
Inputs: USB Type-C, DC 5V/2A
Charge Current: selectable 300 / 500 / 700 / 1000 mA; device label lists 1000 mA × 2 / 700 mA × 2 / 500 mA × 4 / 300 mA × 4
USB Output: 5V/1A (slot 4 only)
Modes: Charge / Discharge / Capacity Test / Storage
Compatible Cells: Li-ion 26650, 22650, 26500, 18650, 18490, 17670, 17500, 17355, 16340, 14500, 10440; Ni-MH / Ni-Cd / AA / AAA / A / SC
Display: LCD real-time voltage, capacity, current and time per slot
Control: Smart touch panel
Certification: CE, RoHS, FC

Modes & Runtime

N/A — accessory, no lighting modes.

User Manual

Included in the Box

  • USB-C charging cable
  • M4S charger

FAQs

Please read our FAQs page to find out more.

How can I check compatibility before ordering?

Check the compatible models, dimensions, battery format and connector details listed for this product. If you are unsure about fit, use Contact support below before ordering.

What is included with this product?

The product description and any Included in the Box list describe the supplied items. Check the selected variant, as contents and optional accessories can differ. Accessories sold separately are not included unless stated.

Where can I find setup and care instructions?

Follow the product instructions and user manual linked on this page, where available. For batteries and chargers, check the supported size, chemistry and voltage before use. Contact our team if you need help.

Where can I check shipping and returns?

See our shipping policy for delivery information and our returns policy for eligibility, timing and costs.

How can I get product or warranty support?

Use Contact support below and include the product model and your order number if you have already purchased. You can also review our warranty information.

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