---
product_id: 538517520
title: "4 Slots 21750 21700 Battery Charger,4 Slots Ni-MH AA 18650 Battery Charger 21700 Charger for 20700 22700 22650 26650 26700 16340 (RCR123) 17670 Battery with PCB Protection Board"
brand: "sunlytour"
price: "354 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/538517520-4-slots-21750-21700-battery-charger-4-slots-ni-mh
store_origin: DK
region: Denmark
---

# Smart chip with auto stop & reverse polarity protection Supports batteries up to 75mm length 4 independent slots for versatile charging 4 Slots 21750 21700 Battery Charger,4 Slots Ni-MH AA 18650 Battery Charger 21700 Charger for 20700 22700 22650 26650 26700 16340 (RCR123) 17670 Battery with PCB Protection Board

**Brand:** sunlytour
**Price:** 354 kr
**Availability:** ✅ In Stock

## Summary

> 🔌 Power up smart, stay ahead of the pack!

## Quick Answers

- **What is this?** 4 Slots 21750 21700 Battery Charger,4 Slots Ni-MH AA 18650 Battery Charger 21700 Charger for 20700 22700 22650 26650 26700 16340 (RCR123) 17670 Battery with PCB Protection Board by sunlytour
- **How much does it cost?** 354 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/538517520-4-slots-21750-21700-battery-charger-4-slots-ni-mh)

## Best For

- sunlytour enthusiasts

## Why This Product

- Trusted sunlytour brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Auto Stop Tech:** Intelligent chip halts charging once full — no overcharge, no hassle, just pure power efficiency.
- • **Smart Safety First:** Built-in PCB protection and reverse polarity guard keep your batteries and gear safe every charge.
- • **Precision Fit Design:** Slots extend up to 75mm, accommodating even the longest batteries for maximum convenience.
- • **Charge Any Power Player:** 4 adjustable slots fit 21700, 18650, 21750 & more — power up all your essential devices.
- • **Universal Compatibility:** Works seamlessly with Ni-MH, Ni-CD, Li-ion IMR, INR, ICR batteries — the ultimate all-in-one charger.

## Overview

This 4-slot battery charger supports a wide range of rechargeable batteries including 21700, 18650, and 21750 sizes up to 75mm length. Featuring independent slots, smart chip technology with auto stop and reverse polarity protection, it ensures safe, efficient charging for Ni-MH, Ni-CD, and various Li-ion battery types. Ideal for professionals needing reliable, versatile power solutions.

## Description

4 Slots 21750 21700 Battery Charger,4 Slots Ni-MH AA 18650 Battery Charger 21700 Charger for 20700 22700 22650 26650 26700 16340 (RCR123) 17670 Battery with PCB Protection Board

## Features

- ※ 1.[Warm Tips] Before Charge,please make sure your battery is OK.If appearance or electrode plate broken,please don’t charge it.This charger can not charge CR123,CR123A battery,also can not charge 1.5V Li-ion battery,please don’t try to charge it.
- ※ 2. [Convenience] This charger has 75 mm slot,it can support Battery less than 75 mm,such as 21750 21700 20700 26700 26650 18650 battery with PCB Protection Board.So you can charge your led torch battery and other home appliance.
- ※ 3. [Compatibility] This smart USB battery charger Compatible With 1.2V Ni-MH Ni-CD AA AAA AAAA C SC F6 Li-ion IMR INR ICR 21750 18650 20700 21700 22700 26650 26700 10440 14500 14650 16340 (RCR123) 16650 17500 17650 17670 18350 18490 18500 Rechargeable Batteries.
- ※ 4.[Independent design] This battery charger adopts a high-standard design and has 4 independent slots, which can be adjusted at will to charge batteries of different lengths, which is very convenient and effective.
- ※ 5.[Smart Protection] It has a unique reverse connection protection effect, and there is a smart chip to escort your equipment.If charge full,it will stop charge based on the smart technology.

## Product Details

- **Brand:** SUNLYTOUR
- **Colour:** Black
- **Product dimensions:** 12D x 16W x 5H centimeters
- **Item weight:** 137 Grams
- **Output voltage:** 4.2 Volts

## Images

![4 Slots 21750 21700 Battery Charger,4 Slots Ni-MH AA 18650 Battery Charger 21700 Charger for 20700 22700 22650 26650 26700 16340 (RCR123) 17670 Battery with PCB Protection Board - Image 1](https://m.media-amazon.com/images/I/61CgvWhZcML.jpg)

## Frequently Bought Together

- 4 Slots 21750 21700 Battery Charger,4 Slots Ni-MH AA 18650 Battery Charger 21700 Charger for 20700 22700 22650 26650 26700 16340 (RCR123) 17670 Battery with PCB Protection Board
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---

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**Shop now:** [https://www.desertcart.dk/products/538517520-4-slots-21750-21700-battery-charger-4-slots-ni-mh](https://www.desertcart.dk/products/538517520-4-slots-21750-21700-battery-charger-4-slots-ni-mh)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-24*