---
product_id: 148493606
title: "XINLANTECH 503040 600mAh Lipo Battery Replacement for Cozmo Vector Robot SkyBell HD WiFi Video Doorbell Flysight FPV Watch Dash Camera GPS Driving Recorder Wireless Speaker"
brand: "xinlantech"
price: "¥4340"
currency: JPY
in_stock: true
reviews_count: 13
category: "Xinlantech"
url: https://www.desertcart.jp/products/148493606-xinlantech-503040-600mah-lipo-battery-replacement-for-cozmo-vector-robot
store_origin: JP
region: Japan
---

# 3.7V nominal, 4.2V peak voltage 600mAh high-capacity power Built-in protection circuit XINLANTECH 503040 600mAh Lipo Battery Replacement for Cozmo Vector Robot SkyBell HD WiFi Video Doorbell Flysight FPV Watch Dash Camera GPS Driving Recorder Wireless Speaker

**Brand:** xinlantech
**Price:** ¥4340
**Availability:** ✅ In Stock

## Summary

> 🔋 Recharge your tech life — don’t let your favorite devices run out of juice!

## Quick Answers

- **What is this?** XINLANTECH 503040 600mAh Lipo Battery Replacement for Cozmo Vector Robot SkyBell HD WiFi Video Doorbell Flysight FPV Watch Dash Camera GPS Driving Recorder Wireless Speaker by xinlantech
- **How much does it cost?** ¥4340 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/148493606-xinlantech-503040-600mah-lipo-battery-replacement-for-cozmo-vector-robot)

## Best For

- xinlantech enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Integrated battery protection circuit guards against overdischarge and short circuits.
- • **Easy DIY Upgrade:** Simple wire connection with clear polarity guidance lets you revive your gadgets hassle-free.
- • **Compact & Compatible:** Slim 40x30x4.8mm size fits seamlessly into multiple devices with a 2-pin JST connector.
- • **Power Up Your Devices:** 600mAh capacity ensures longer runtime for your Cozmo, SkyBell, and more.
- • **Voltage That Delivers:** Stable 3.7V nominal voltage with a full charge peak of 4.2V for consistent performance.

## Overview

The XINLANTECH 503040 is a 600mAh 3.7V rechargeable lithium-ion battery designed as a direct replacement for Cozmo Vector Robot, SkyBell HD WiFi Video Doorbell, Bluetooth headphones, dash cameras, and other compact electronics. Featuring a built-in protection circuit to prevent overdischarge and short circuits, it offers reliable power in a compact 40x30x4.8mm form factor with a 2-pin JST connector, making it an ideal DIY upgrade to extend your device’s lifespan.

## Description

Red cable connect positive power "+", Black cable connect "-" power negative pole; Packages: 1 x 600mAh Li-ion Battery

Review: Fits Cozmo as a replacement - Purchased to replace the worn out battery in a Anki Cozmo. Followed the instructions on the web to take the little robot apart and then replaced the old battery with this one by snipping the wires running to the old battery and then soldering them to the wires on the new battery (I removed the connector on the new battery). Reassembled, charged up and Cozmo is back to life :-)
Review: Replacement BT Headphones Battery - My Bluetooth headphones stopped charging. After carefully dismantling them, found battery had swollen. This was a perfect fit and increased the capacity by 120mAh so they stay charged longer. Had to cut the plug-off and solder leads to circuit board. Have been working for almost a month and charge without any issues. Great product to repair my headphones.

## Features

- 3.7V rechargeable replacement lithium ion battery 600mAh , fit for Wireless Bluetooth Headphones, SkyBell HD Doorbell Camera,Driving recorder and More.
- Nominal voltage is 3.7V, fully charged is 4.2V, 600mAh capacity of battery, Power 2.22Wh ,item model lp503040, Built-in battery protection circuit module PMC to prevent overdischarge and short circuit of this battery.
- Battery size: 40 x 30 x 4.8 mm (L*W*T)
- Connector Type: 2-Pin JST Pitch1.25mm; Cable Length: 1.6 inch,
- Before replacing, please contrast with the old battery and check the polarity of the battery. Red wire connection power positive " +" , Black wire connect power negative pole "-". if is a reversed, you need position of interchange wires.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07V22WWRJ |
| Best Sellers Rank | 460 in Car On-Dash Mounted Cameras 57,619 in Mobile Phone Accessories |
| Guaranteed software updates until | unknown |
| Item model number | 503040 Lipo Battery |
| Manufacturer | XINLANTECH |
| Product Dimensions | 4 x 3 x 0.5 cm; 9 g |

## Product Details

- **Battery capacity:** 600 Milliampere Hour (mAh)
- **Battery cell composition:** Lithium Polymer
- **Brand:** XINLANTECH
- **Number of batteries:** 1 Lithium Polymer batteries required.
- **Recommended uses for product:** Camera,Gps,Robot,Speaker,Watch

## Images

![XINLANTECH 503040 600mAh Lipo Battery Replacement for Cozmo Vector Robot SkyBell HD WiFi Video Doorbell Flysight FPV Watch Dash Camera GPS Driving Recorder Wireless Speaker - Image 1](https://m.media-amazon.com/images/I/513tl8+brGL.jpg)

## Questions & Answers

**Q: Can I use it for a insma baby monitor? I can’t find the right one for it I burned mine and need a new one?**
A: Hello,
This a battery capacity is 600mAh only , which is not application for any baby monitor display.
You can tell us the size of the original battery, we try recommend one battery, hope can help for you.
Thank you!

**Q: I am replacing a varta polifflex x5 443441, will this battery work?**
A: Hi, The size of this battery is length 40mm, width 30mm ,thickness 5.0 mm (L1.57"*W1.18"*T0.19" ), Can be compared with the original battery to see if the size is appropriate. Thank you!

**Q: Can i use this battery for Cozmo Anki robot?**
A: Hi, We do not know the battery specifications of the Cozmo Anki robot. You can tell us the size and plug specifications of the battery. Let us recommend a suitable battery for you. Thank you!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fits Cozmo as a replacement
*by W***R on 16 February 2024*

Purchased to replace the worn out battery in a Anki Cozmo. Followed the instructions on the web to take the little robot apart and then replaced the old battery with this one by snipping the wires running to the old battery and then soldering them to the wires on the new battery (I removed the connector on the new battery). Reassembled, charged up and Cozmo is back to life :-)

### ⭐⭐⭐⭐⭐ Replacement BT Headphones Battery
*by D***N on 25 January 2022*

My Bluetooth headphones stopped charging. After carefully dismantling them, found battery had swollen. This was a perfect fit and increased the capacity by 120mAh so they stay charged longer. Had to cut the plug-off and solder leads to circuit board. Have been working for almost a month and charge without any issues. Great product to repair my headphones.

### ⭐⭐⭐⭐⭐ Just what Vector needed
*by B***S on 12 July 2025*

Was for Vector Robot, fitted and worked well.

## Frequently Bought Together

- AOLIKES 3.7v 503040 600mAh Lipo Battery Replacement for Cozmo Vector Robot SkyBell HD Video Doorbell Flysight FPV Watch Dash Camera GPS Driving Recorder Wireless Speaker (1)
- PKCELL N Size 1.5V Alkaline Batteries, 10 Pack Ultra Long-Lasting MN9100/E90/LR1 Medical Battery for Medical Devices, GPS Trackers, Flashlights, Key Fobs, 10-Year Shelf Life
- Duracell N 1.5V Alkaline Battery, 2 Count Pack, N 1.5 Volt Alkaline Battery, Long-Lasting for Medical Devices, Key Fobs, GPS Trackers, and More

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/148493606-xinlantech-503040-600mah-lipo-battery-replacement-for-cozmo-vector-robot](https://www.desertcart.jp/products/148493606-xinlantech-503040-600mah-lipo-battery-replacement-for-cozmo-vector-robot)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-23*