---
product_id: 567078342
title: "3.7V 3200mAh USB Rechargeable Lithium lon Battery for Flashlights, Headlamps, Bike Lights, Bluetooth Speaker Etc(2 Pack)"
brand: "nermak"
price: "¥5934"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/567078342-3-7v-3200mah-usb-rechargeable-lithium-lon-battery-for-flashlights
store_origin: JP
region: Japan
---

# Built-in USB-C charging 1500+ recharge cycles 3200mAh high capacity 3.7V 3200mAh USB Rechargeable Lithium lon Battery for Flashlights, Headlamps, Bike Lights, Bluetooth Speaker Etc(2 Pack)

**Brand:** nermak
**Price:** ¥5934
**Availability:** ✅ In Stock

## Summary

> 🔌 Stay charged, stay ahead—power your lifestyle with confidence!

## Quick Answers

- **What is this?** 3.7V 3200mAh USB Rechargeable Lithium lon Battery for Flashlights, Headlamps, Bike Lights, Bluetooth Speaker Etc(2 Pack) by nermak
- **How much does it cost?** ¥5934 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/567078342-3-7v-3200mah-usb-rechargeable-lithium-lon-battery-for-flashlights)

## Best For

- nermak enthusiasts

## Why This Product

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

## Key Features

- • **Safety First, Always:** Advanced protection against overcharge, over-discharge, and short circuits keeps you worry-free.
- • **Power-packed Longevity:** 3200mAh capacity fuels your devices longer, so you never miss a moment.
- • **Sustainable & Reliable:** Over 1500 recharge cycles mean fewer replacements and more eco-friendly usage.
- • **Universal USB-C Recharge:** Charge anywhere with the built-in USB-C port—ditch bulky chargers and stay effortlessly powered.
- • **Multi-device Compatibility:** Perfect for flashlights, headlamps, bike lights, and Bluetooth speakers—your all-in-one power solution.

## Overview

This 2-pack of 3.7V 3200mAh lithium-ion rechargeable batteries features a compact 18mm x 70mm design with built-in USB-C charging. Engineered for safety with overcharge and short-circuit protection, these batteries support over 1500 recharge cycles and are ideal for powering flashlights, headlamps, bike lights, and Bluetooth speakers. The included 2-in-1 USB cable eliminates the need for extra chargers, making it a versatile and eco-conscious power upgrade.

## Description

3.7V 3200mAh USB Rechargeable Lithium lon Battery for Flashlights, Headlamps, Bike Lights, Bluetooth Speaker Etc(2 Pack)

## Features

- 【Size Parameters】3.7V 3200mAh lithium batteries, size: 18mm(0.7 inch) diameter x 70mm(2.7 inch), (Note: they are longer than the flat-top batteries, please check the battery size before purchasing)
- 【Superior Performance】：Built-in USB-C port, support C-C output, you can charge your cell phone and other devices in case of emergency, easy to charge with the included 2-in-1 USB cable, no need for an additional battery charger (does not support PD fast charging)
- 【Widely Uses】：NERMK 3.7V rechargeable batteries are suitable for flashlights（High-power flashlights are not suitable）, headlamps, remote controls, microphones, radios, bike lights, bluetooth speakers, and other household devices.
- 【Safe and Efficient】: NERMAK 3.7V battery has built-in safety protection against overcharging, over-discharging, over-current and short-circuit, with 1500+ charging cycles for longer service life, making it an ideal replacement battery for high-frequency equipment.
- 【Warm Note】: 2* 3.7 Volt Replacement lithium ion battery，12 months warranty, If you have any question for our product, Contact us: click the "Ask a question" on our storefront or in "YOUR ORDER" options click the "contact seller"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Dimensions | 2.85 x 0.75 x 0.75 inches |
| Battery Weight | 2.2 Ounces |
| Unit Count | 2.0 Count |
| Battery Cell Type | Lithium Ion |
| Recommended Uses For Product | Flashlights |
| Reusability | Rechargeable |
| Battery Capacity | 3200 Milliamp Hours |
| Amperage | 3200 Milliamps |
| Voltage | 3.7 Volts |

## Product Details

- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Brand:** NERMAK
- **Battery Cell Composition:** Lithium Ion
- **Battery Capacity:** 3200 Milliamp Hours
- **Recommended Uses For Product:** Flashlights

## Images

![3.7V 3200mAh USB Rechargeable Lithium lon Battery for Flashlights, Headlamps, Bike Lights, Bluetooth Speaker Etc(2 Pack) - Image 1](https://m.media-amazon.com/images/I/61ACd5nsUNL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- NERMAK 3.7V 3200mAh USB Rechargeable Lithium lon Battery for Flashlights, Headlamps, Bike Lights, Bluetooth Speaker Etc(2 Pack)
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**Shop now:** [https://www.desertcart.jp/products/567078342-3-7v-3200mah-usb-rechargeable-lithium-lon-battery-for-flashlights](https://www.desertcart.jp/products/567078342-3-7v-3200mah-usb-rechargeable-lithium-lon-battery-for-flashlights)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-11*