---
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: "20128 Ft"
currency: HUF
in_stock: true
reviews_count: 12
category: "Sunlytour"
url: https://www.desertcart.hu/products/538517520-4-slots-21750-21700-battery-charger-4-slots-ni-mh
store_origin: HU
region: Hungary
---

# Smart chip with auto cut-off 4 independent charging slots USB powered, universal compatibility 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:** 20128 Ft
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up smarter, not harder — never miss a charge!

## 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?** 20128 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/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

- • **Smart Safety Tech:** Built-in PCB protection and reverse polarity guard for worry-free charging.
- • **Intelligent Auto Stop:** Smart chip halts charging once batteries reach full capacity, preserving battery life.
- • **Compact & Portable Design:** Lightweight 137g charger fits perfectly on your desk or travel kit.
- • **Universal Battery Compatibility:** Supports Ni-MH, Ni-CD, Li-ion (IMR, INR, ICR) across 20+ battery types including 21700 & 18650.
- • **Charge 4 Batteries Simultaneously:** Maximize efficiency with 4 independent slots adjustable up to 75mm length.

## Overview

The JUNENGJIA D4 is a versatile 4-slot USB battery charger designed for professional-grade rechargeable batteries including 21700, 18650, and Ni-MH types. Featuring adjustable slots up to 75mm, smart PCB protection, and an intelligent auto cut-off chip, it ensures safe, efficient charging for a wide range of battery sizes and chemistries. Compact and lightweight, it’s the perfect companion for tech-savvy professionals who demand reliability and convenience.

## 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 : desertcart.ae: Automotive

Review: Good 18650 & AA battery charger - Good 18650 & AA battery charger
Review: Good charger - Good device - works well

## 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 |
| Best Sellers Rank | #2,195 in Electronics ( See Top 100 in Electronics ) #6 in Household Battery Chargers |
| Item model number | D4 |
| Manufacturer | JUNENGJIA |
| Product Dimensions | 12 x 16 x 5 cm; 137 g |

## Product Details

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

## 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 18650 & AA battery charger
*by A***S on 11 January 2026*

Good 18650 & AA battery charger

### ⭐⭐⭐⭐⭐ Good charger
*by A***W on 2 September 2025*

Good device - works well

### ⭐⭐⭐⭐⭐ charger
*by A***Z on 13 January 2026*

good one. does the job

## 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
- DQGG 3.7 Volt 16340 Rechargeable Battery 2800mAh Battery 4 Pack Large Capacity Batteries for LED Flashlight, Headlamps, etc
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**Shop now:** [https://www.desertcart.hu/products/538517520-4-slots-21750-21700-battery-charger-4-slots-ni-mh](https://www.desertcart.hu/products/538517520-4-slots-21750-21700-battery-charger-4-slots-ni-mh)

---

*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-09*