---
product_id: 455918557
title: "USB 9V Rechargeable Battery- 9 Volt High Capacity 650mAh Square Lithium Batteries with Type C Port Cable for Smoke Alarm Detector,Wireless Microphones & More (2-Pack)"
brand: "maxwel manufacturing"
price: "€ 17.58"
currency: EUR
in_stock: true
reviews_count: 8
category: "Maxwel Manufacturing"
url: https://www.desertcart.gr/products/455918557-usb-9v-rechargeable-battery-9-volt-high-capacity-650mah-square
store_origin: GR
region: Greece
---

# Type-C USB Rechargeable 650mAh High Capacity Eco-Friendly Lithium Tech USB 9V Rechargeable Battery- 9 Volt High Capacity 650mAh Square Lithium Batteries with Type C Port Cable for Smoke Alarm Detector,Wireless Microphones & More (2-Pack)

**Brand:** maxwel manufacturing
**Price:** € 17.58
**Availability:** ✅ In Stock

## Summary

> 🔌 Recharge your power, recharge your life—never run out when it counts!

## Quick Answers

- **What is this?** USB 9V Rechargeable Battery- 9 Volt High Capacity 650mAh Square Lithium Batteries with Type C Port Cable for Smoke Alarm Detector,Wireless Microphones & More (2-Pack) by maxwel manufacturing
- **How much does it cost?** € 17.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/455918557-usb-9v-rechargeable-battery-9-volt-high-capacity-650mah-square)

## Best For

- maxwel manufacturing enthusiasts

## Why This Product

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

## Key Features

- • **Sustainably Smart:** Mercury & cadmium free—reduce waste and your carbon footprint with every recharge.
- • **Long-Lasting Energy:** Retains 75% capacity after 3 years—outperforms 1200 standard dry cells.
- • **Built-In Safety First:** PTC protection prevents over-current and overheating for peace of mind.
- • **Charge Anywhere, Anytime:** Convenient Type-C USB port lets you recharge via power banks, laptops, or phone adapters.
- • **Power Up Your Essentials:** Reliable 9V output perfect for smoke alarms, microphones, and more.

## Overview

Maxwel Manufacturing’s USB 9V Rechargeable Battery delivers a robust 650mAh capacity with eco-friendly lithium technology. Featuring a universal Type-C charging port, these batteries offer long-lasting power retention and built-in safety protections, making them ideal for smoke detectors, wireless microphones, and other household devices. The 2-pack ensures you stay powered sustainably and conveniently, reducing waste and frequent replacements.

## Description

Buy Maxwel Manufacturing USB 9V Rechargeable Battery- 9 Volt High Capacity 650mAh Square Lithium Batteries with Type C Port Cable for Smoke Alarm Detector,Wireless Microphones & More (2-Pack): 9V - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works great - Works good. I try to use rechargeable batteries as much as I can, to be environmentally conscious. It has a 2 cable charger so both can be charged at the same time. Cannot find rechargeable 9-volt batteries in local stores.
Review: Almost sent them back. Huh??? - I have several little audio items that run on a standard 9 volt batteries. I was attracted to these rechargeable batteries so I could just charge them with a USB charger and not have to keep buying 9 volt alkaline batteries all of the time. I also liked the little charging port on the batteries, but noticed there were no charge/discharge lights to indicate status. Being an electrical engineer, I measured the voltage on each battery and was happy to see something 9.03 or 9.04 volts, with no load. I assumed they were fully charged already and tried them out in my devices. Nothing. I measured voltage again with my DVM and they both read zero volts. That's odd, first read full voltage, then zero. So I charged them overnight with the a small USB charging device which monitors both output voltage to the batteries and current. Voltage was OK on the charger but the current was zero, which meant the new batteries were not taking a charge. Only when I connected the new batteries to a larger battery pack designed to be a portable charging device for traveling, did both the new batteries take a charge and work when placed in the devices. Bottom line... The batteries are shipped with no charge, but may measure a full scale voltage on a DVM. Huh? If they had battery status lights, like stated in the desertcart ad, I probably could have avoided all of the BS I did at first. I gave this review 4 stars because of the confusion I had at first. I assume these batteries will last much longer that a typical alkaline battery, but that remains to b seen as time goes on.

## Features

- 【WIDE APPLICATIONS】- 9V lithium battery can power up fire alarm, smoke detector, microphone, multi-meter, metal Detector, clamp meter, doorbell, thermometer, toys, and more household devices.
- 【SMART PROTECTION】Built-in PTC protection can avoid over-current, even explosions caused by high temperatures.Store the battery in a cool and dry environment and keep away from intense heat, fire or liquids.
- 【LARGE CAPACITY & LONG LIFE】No memory effect, improved low self discharge makes it still maintaining 75% of capacity after 3 years.One LP 9V battery is greater than or equal to 1200 dry cells.
- 【ECO FRIENDLY】 Contain no mercury or cadmium, much more friendly for our environmental.By reusing batteries, you are reducing your carbon footprint and the waste caused by one time use 9V battery.
- 【Type-C USB Charging】 1 Pcs =1200Dry cell; Can charge at any partially drained by power bank, laptop USB port, smartphone adapter via the Type-C USB cable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09X1HX37S |
| Batteries | 2 9V batteries required. (included) |
| Best Sellers Rank | #195,832 in Health & Household ( See Top 100 in Health & Household ) #127 in 9V Batteries |
| Customer Reviews | 3.8 3.8 out of 5 stars (95) |
| Date First Available | July 9, 2022 |
| Item Weight | 2.39 ounces |
| Manufacturer | Maxwel Manufacturing |
| Package Dimensions | 3.74 x 3.5 x 0.71 inches |

## Product Details

- **Battery Capacity:** 650 Milliamp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** Maxwel Manufacturing
- **Number of Batteries:** 2 9V batteries required. (included)
- **Recommended Uses For Product:** Laptop, Phone

## Images

![USB 9V Rechargeable Battery- 9 Volt High Capacity 650mAh Square Lithium Batteries with Type C Port Cable for Smoke Alarm Detector,Wireless Microphones & More (2-Pack) - Image 1](https://m.media-amazon.com/images/I/61suZpxI16L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by C***O on December 21, 2025*

Works good. I try to use rechargeable batteries as much as I can, to be environmentally conscious. It has a 2 cable charger so both can be charged at the same time. Cannot find rechargeable 9-volt batteries in local stores.

### ⭐⭐⭐⭐ Almost sent them back. Huh???
*by G***T on September 23, 2022*

I have several little audio items that run on a standard 9 volt batteries. I was attracted to these rechargeable batteries so I could just charge them with a USB charger and not have to keep buying 9 volt alkaline batteries all of the time. I also liked the little charging port on the batteries, but noticed there were no charge/discharge lights to indicate status. Being an electrical engineer, I measured the voltage on each battery and was happy to see something 9.03 or 9.04 volts, with no load. I assumed they were fully charged already and tried them out in my devices. Nothing. I measured voltage again with my DVM and they both read zero volts. That's odd, first read full voltage, then zero. So I charged them overnight with the a small USB charging device which monitors both output voltage to the batteries and current. Voltage was OK on the charger but the current was zero, which meant the new batteries were not taking a charge. Only when I connected the new batteries to a larger battery pack designed to be a portable charging device for traveling, did both the new batteries take a charge and work when placed in the devices. Bottom line... The batteries are shipped with no charge, but may measure a full scale voltage on a DVM. Huh? If they had battery status lights, like stated in the Amazon ad, I probably could have avoided all of the BS I did at first. I gave this review 4 stars because of the confusion I had at first. I assume these batteries will last much longer that a typical alkaline battery, but that remains to b seen as time goes on.

### ⭐⭐⭐⭐⭐ Reusable nattery
*by I***O on February 19, 2023*

Is short time but work ok in the sensors

## Frequently Bought Together

- Maxwel Manufacturing USB 9V Rechargeable Battery- 9 Volt High Capacity 650mAh Square Lithium Batteries with Type C Port Cable for Smoke Alarm Detector,Wireless Microphones & More (2-Pack)
- 9V Battery Connector,10 PCS T-Type 9 Volt Buckle Connector Hard Plastic Shell Used in Student Experiment,or Other Equipment with Battery

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**Shop now:** [https://www.desertcart.gr/products/455918557-usb-9v-rechargeable-battery-9-volt-high-capacity-650mah-square](https://www.desertcart.gr/products/455918557-usb-9v-rechargeable-battery-9-volt-high-capacity-650mah-square)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-05*