---
product_id: 19689261
title: "Lithium Ion Battery Pack - 3.7V 6600mAh"
brand: "adafruit"
price: "AR$3902"
currency: ARS
in_stock: false
reviews_count: 8
url: https://www.desertcart.com.ar/products/19689261-lithium-ion-battery-pack-3-7v-6600mah
store_origin: AR
region: Argentina
---

# Lithium Ion Battery Pack - 3.7V 6600mAh

**Brand:** adafruit
**Price:** AR$3902
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Lithium Ion Battery Pack - 3.7V 6600mAh by adafruit
- **How much does it cost?** AR$3902 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/19689261-lithium-ion-battery-pack-3-7v-6600mah)

## Best For

- adafruit enthusiasts

## Why This Product

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

## Description

Large 3 cell battery pack with a genuine JST-2 adapter. Portable, rechargeable. Perfect battery to supply power to your projects while not compromising on quality, weight, or size

## Product Details

- **Number of Batteries:** 1 Lithium Polymer batteries required. (included)
- **Brand:** Adafruit
- **Battery Cell Composition:** Lithium Ion
- **Battery Capacity:** 2200 Milliampere Hour (mAh)
- **Unit Count:** 1 Count

## Images

![Lithium Ion Battery Pack - 3.7V 6600mAh - Image 1](https://m.media-amazon.com/images/I/51lzOgpXUgL.jpg)
![Lithium Ion Battery Pack - 3.7V 6600mAh - Image 2](https://m.media-amazon.com/images/I/51X5mJ-mhNL.jpg)

## Questions & Answers

**Q: Is the voltage output 11.1v or 3.7v? I am assuming there are 3 cells in the pack, which would total 11.1v. I am looking for a replacement  for a 11.1v**
A: 3.7v output. For this battery the cells are in parallel

**Q: does it work on the raspberry pi?**
A: It can but it depends. I assume you're looking for a battery backup or "UPS" (uninterruptible power supply). This is just a Lithium battery.

This solution works...

https://learn.adafruit.com/adafruit-powerboost-1000c-load-share-usb-charge-boost/overview

**Q: What do you use to charge this battery? i had a adafruit 500c  that i used to charge my batteries in the past, but is has gone missing. suggestions?**
A: This was not a re-chargeable battery.

**Q: what are the actual dimentions of the battery ?**
A: Same bat sold be ada fruit. Details taken from their site.3 x 2200mAh Lithium Ion 18650-sized cells in parallelDimensions: 69mm x 54mm x 18mm / 2.7" x 2.1" x 0.71"Weight: 155 g/ 5 ozMax charging rate: 1.65AMax continuous discharge rate: 3.3A

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great!
*by J***L on November 12, 2023*

I just installed this battery in my wall-mounted SimpleHuman lighted mirror. It arrived fully charged and was so simple to install. I did need the help of a YouTube video with re-installing the on/off button correctly, but other than that it was pretty darn simple I've had the mirror for several years and like it a lot and did not want to have to pay hundreds for a new one, assuming I could even find another one now. The battery was exactly like the original. I am ordering a second one for future use.

### ⭐⭐⭐⭐⭐ Powerful little battery
*by D***E on July 20, 2023*

I build a weather station DYI project and needed to find a easy way to power it. I build a little box with a Solar Cell charger and glued it on the box. So this battery lasts about a week with a solar panel. It sits outside in the heat during the day and cold at night. So far its lasted a year and still going strong. Well-constructed. Worth the price for your DIY project. 6600mah is a lot of power for the money.

### ⭐⭐⭐⭐⭐ Solid replacement for wife’s makeup mirror
*by A***3 on May 24, 2023*

Second time I bought this for mirror. First one lasted 4 years, so not the greatest quality battery but what you going to do, cheap enough to replace every so often.

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**Shop now:** [https://www.desertcart.com.ar/products/19689261-lithium-ion-battery-pack-3-7v-6600mah](https://www.desertcart.com.ar/products/19689261-lithium-ion-battery-pack-3-7v-6600mah)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-30*