---
product_id: 176156175
title: "Blomiky 2 Pack 7.4V / 2 x 3.7V 400mA Lithium Battery Charger Cable with SM-4P 4 pin Plug for Old Version UDI001 UDI008 UDI009 and HJ808 HJ812 RC Boat Battery / UDI001 USB 2"
brand: "blomiky"
price: "£8.41"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/176156175-blomiky-2-pack-7-4v-2-x-3-7v-400ma
store_origin: GB
region: United Kingdom
---

# 7.4V dual battery power SM-4P 4-pin secure plug Built-in overcharge protection Blomiky 2 Pack 7.4V / 2 x 3.7V 400mA Lithium Battery Charger Cable with SM-4P 4 pin Plug for Old Version UDI001 UDI008 UDI009 and HJ808 HJ812 RC Boat Battery / UDI001 USB 2

**Brand:** blomiky
**Price:** £8.41
**Availability:** ✅ In Stock

## Summary

> ⚡ Charge Fast, Race Hard: Power Up Your RC Boats Like a Pro!

## Quick Answers

- **What is this?** Blomiky 2 Pack 7.4V / 2 x 3.7V 400mA Lithium Battery Charger Cable with SM-4P 4 pin Plug for Old Version UDI001 UDI008 UDI009 and HJ808 HJ812 RC Boat Battery / UDI001 USB 2 by blomiky
- **How much does it cost?** £8.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/176156175-blomiky-2-pack-7-4v-2-x-3-7v-400ma)

## Best For

- blomiky enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Reliable:** Integrated IC circuit prevents overcharging, protecting your battery’s lifespan and your investment.
- • **Dual Pack Convenience:** Two cables in one package—double the readiness, double the fun, never miss a race.
- • **Precision Power Match:** Specifically engineered for HJ808, UDI001, UDI008 & similar RC boats—no guesswork, just perfect fit.
- • **Smart Charging Indicator:** Red light means charging, green means full—stay informed without lifting a finger.
- • **Universal Compatibility Within RC Niche:** Works seamlessly with multiple popular RC boat models including Altair AA102, Cheerwing Venom, and DEERC series.

## Overview

The Blomiky 2 Pack USB Charger Cables deliver precise 7.4V charging with a secure SM-4P 4-pin plug, designed exclusively for select RC boats like HJ808, UDI001, and UDI008. Featuring built-in overcharge protection and intuitive LED indicators, these cables ensure safe, efficient charging to keep your remote control boats race-ready. Perfect for enthusiasts who demand reliability and compatibility across multiple popular RC boat models.

## Description

Blomiky 2 Pack 7.4V / 2 x 3.7V 400mA Lithium Battery Charger Cable with SM-4P 4 pin Plug for Old Version UDI001 UDI008 UDI009 and HJ808 HJ812 RC Boat Battery / UDI001 USB 2

## Features

- Do not fit other device besides HJ808 UDI008 UDI001 RC Boat. SM-4P Connector Plug, Only in RC Boat Battery which use same SM-4P plug. When put in plug convex side on above,flat side on below., first and third pin is positive, second and forth pin is negative. please make sure your battery is same. don't reversed.
- USB charger cable built-in over-charged IC circuit protection,Red ligth is solid when charging, change to green light solid after full charged. 7.4V / 2 x 3.7V 400mA USB Charger Cable with SM-4P 4 pin Plug for Old Version UDIRC UDI001 UDI008 RC Boat
- 7.4V / 2 x 3.7V 400mA USB Charger Cable with SM-4P 4 pin Plug for Altair AA102 Big size Red RC Boat and Altair MidSize AA Wave RC Remote Control Boat Yellow colour,
- 7.4V / 2 x 3.7V 400mA USB Charger Cable with SM-4P 4 pin Plug for batttery fit for DEERC 2008 RC Boat Remote Control Boat with LED Light and HONGXUNJIE HJ808 Red and Blue 2.4Ghz RC Boat
- 7.4V / 2 x 3.7V 400mA USB Charger Cable with SM-4P 4 pin Plug fit for Cheerwing Venom Black orange RC Boat Remote Control Boat battery.
- Charger cable suitable for Jogpun H138 RC Boat. Charger cable sutiable for Wefone WF17 WF17-BU Remote Control Boat.
- 7.4V charger cable suitable for DEERC HJ812 RC Boat Battery, Charger cable suitable for RANFLY RC Boat . Charger cable suitable for Hongxunjie HJ805 HJ808 HJ811 HJ812 HJ815 RC Boat battery

## Product Details

- **Brand:** Blomiky
- **Connector Type:** Usb, Usb 2.0
- **Cable Type:** USB
- **Compatible Devices:** Charging Adapter
- **Special Feature:** remote_controlled

## Images

![Blomiky 2 Pack 7.4V / 2 x 3.7V 400mA Lithium Battery Charger Cable with SM-4P 4 pin Plug for Old Version UDI001 UDI008 UDI009 and HJ808 HJ812 RC Boat Battery / UDI001 USB 2 - Image 1](https://m.media-amazon.com/images/I/61B4Bp9dtgL.jpg)

## Frequently Bought Together

- Blomiky 2 Pack 7.4V / 2 x 3.7V 400mA USB Charger Cable with SM-4P 4 pin Plug for Old Version UDI001 UDI008 UDI009 and HJ808 RC Boat Battery UDI001 USB 2
- Fytoo Accessories 2PCS 7.4V 500mAh SM-4P Plug Battery for EC16 DE85 Remote Control Boat Spare Battery Boat Model Car Model High-Rate Lithium Battery

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**Shop now:** [https://www.desertcart.co.uk/products/176156175-blomiky-2-pack-7-4v-2-x-3-7v-400ma](https://www.desertcart.co.uk/products/176156175-blomiky-2-pack-7-4v-2-x-3-7v-400ma)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-26*