---
product_id: 528395974
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: "$69"
currency: NZD
in_stock: true
reviews_count: 13
category: "Sunlytour"
url: https://www.desertcart.nz/products/528395974-4-slots-21750-21700-battery-charger-4-slots-ni-mh
store_origin: NZ
region: New Zealand
---

# Supports fast charging with up to 75mm battery length 4 independent slots for versatile charging Smart PCB protection & reverse polarity safety 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:** $69
**Availability:** ✅ In Stock

## Summary

> 🔌 Power up smartly — never miss a charge, never miss a beat!

## 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?** $69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/528395974-4-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

- • **Fast & Informative:** Charge speed depends on your power source, with a clear, informative display keeping you in control.
- • **Smart Safety First:** Built-in PCB protection and reverse polarity guard ensure your batteries and device stay safe during every charge.
- • **Charge Any Power Player:** Compatible with 1.2V Ni-MH, Ni-CD, Li-ion, IMR, INR, ICR batteries including 21700, 18650, 26650 & more.
- • **Independent Slot Control:** Charge up to 4 batteries simultaneously with independent slot management for maximum efficiency and convenience.
- • **Tailored Fit for Every Battery:** Adjustable slots up to 75mm accommodate a wide range of battery sizes from AA to 26700 effortlessly.

## Overview

This 4-slot battery charger supports a broad spectrum of rechargeable batteries including 21700, 18650, and Ni-MH types, featuring adjustable slots up to 75mm. Equipped with smart PCB protection and reverse polarity safety, it ensures secure, efficient charging. Its independent slot design allows simultaneous charging of different battery sizes, complemented by an informative display for real-time monitoring. Ideal for professionals who demand reliability and versatility in their power accessories.

## Description

desertcart.com: 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 : Electronics

Review: Good quality with an informative display - Works as intended. The screen is really cool and informative Highly recommend this charger. The metal tabs that hold the battery in place are solid too, it doesn’t look like it will break. Charge speed is as fast as the charger brick and wire you use. I use a 65w brick and a 160w wire. So it charges pretty fast.
Review: Good value - Device works as intended and is quite good at charging devices quickly. I was genuinely surprised by the quality and value you get for your money. I would recommend this as a battery charger but if possible try to wait for a sale cuz this often goes on sale.

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09G6KH2C1 |
| Customer Reviews | 4.5 4.5 out of 5 stars (854) |
| Date First Available | September 15, 2021 |
| Item Weight | 4.8 ounces |
| Item model number | D4 |
| Manufacturer | JUNENGJIA |
| Product Dimensions | 4.72 x 6.3 x 1.97 inches |

## Product Details

- **Brand:** SUNLYTOUR
- **Color:** Black
- **Item Weight:** 137 Grams
- **Output Voltage:** 5 Volts (DC)
- **Product Dimensions:** 1.8"D x 4"W x 5.5"H

## 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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality with an informative display
*by J***Z on November 30, 2025*

Works as intended. The screen is really cool and informative Highly recommend this charger. The metal tabs that hold the battery in place are solid too, it doesn’t look like it will break. Charge speed is as fast as the charger brick and wire you use. I use a 65w brick and a 160w wire. So it charges pretty fast.

### ⭐⭐⭐⭐⭐ Good value
*by A***S on March 19, 2025*

Device works as intended and is quite good at charging devices quickly. I was genuinely surprised by the quality and value you get for your money. I would recommend this as a battery charger but if possible try to wait for a sale cuz this often goes on sale.

### ⭐⭐⭐⭐⭐ Excellent Charger!
*by A***I on September 7, 2023*

If you're looking for 21700 Battery Charger, look nowhere else. It looks and works great!

## 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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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-13*