---
product_id: 100566214
title: "FSI 8000mAh 3.7V Rechargeable Li-ion Battery (More Than 800 Cycles -Power for Flashlight) - Pack of 2"
brand: "fsi"
price: "128 zł"
currency: PLN
in_stock: false
reviews_count: 2
category: "Electronics"
url: https://www.desertcart.pl/products/100566214-fsi-8000mah-3-7v-rechargeable-li-ion-battery-more-than
store_origin: PL
region: Poland
---

# FSI 8000mAh 3.7V Rechargeable Li-ion Battery (More Than 800 Cycles -Power for Flashlight) - Pack of 2

**Brand:** fsi
**Price:** 128 zł
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** FSI 8000mAh 3.7V Rechargeable Li-ion Battery (More Than 800 Cycles -Power for Flashlight) - Pack of 2 by fsi
- **How much does it cost?** 128 zł with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/100566214-fsi-8000mah-3-7v-rechargeable-li-ion-battery-more-than)

## Best For

- fsi enthusiasts

## Why This Product

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

## Description

High Safety  With overcharge / discharge protection function that you can use it without worry. High Energy Density  It can be charge many times, high energy density, long life battery. Reliability Quality  With strict quality control to provide greater reliability of the product.  Safe and environmental friendly.  Durable in low and high temperature operations.  Batteries come pre-charged and can be used immediately out of the package. Battery Specification  Type: 26650 3.7V lithium rechargeable battery.  Capacity: 8000 mAh.  Charge Time: 6-8 hour. Package Include 2 x 26650 Battery. WARNING:  DO NOT dispose in fire or heat.  DO NOT puncture,damage,and disassemble.  DO NOT mix fresh batteries with used batteries.  DO NOT submerge the batteries in water.

## Features

- Battery Type: High performance 8000mah 26650 rechargeable battery (2pcs).
- High Safety: Discharging and charging protection circuitry built-in. High energy density, long life battery
- High Quality: With strict quality control to provide greater reliability of the product.
- Universal Apply: flashlight, LED torch, digital camera, toy and other digital products.
- Note: it is button top battery, will not suitable for some device which use flat top battery
- ›See more product details

## Images

![FSI 8000mAh 3.7V Rechargeable Li-ion Battery (More Than 800 Cycles -Power for Flashlight) - Pack of 2 - Image 1](https://images-na.ssl-images-amazon.com/images/I/41kiCBEv9zL.jpg)

## Customer Reviews

### ⭐⭐ Amazon
            
*by K***L on 14 March 2019*

It's mentioned 8000mah but actually 4000mah working I am using and comparing other brands
  

### ⭐ Useless product
            
*by T***H on 1 June 2019*

This product is useless, don't buy this is a waste of money. I symply damage my brand new torch light by using this battery.The acid comming out of this battery just after few minutes of switching on the light which cause to the damage of the torch. I personally regretted of buying this pruduct.
  

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**Shop now:** [https://www.desertcart.pl/products/100566214-fsi-8000mah-3-7v-rechargeable-li-ion-battery-more-than](https://www.desertcart.pl/products/100566214-fsi-8000mah-3-7v-rechargeable-li-ion-battery-more-than)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-26*