---
product_id: 806581034
title: "OBD Battery Saver for Car ECU Memory Backup – Dual Display Voltage/Current Monitor, Leakage Detection & Overload Protection, ABS Housing, Green"
brand: "joyousmall"
price: "4338 kr"
currency: ISK
in_stock: true
category: "Joyous Mall"
url: https://www.desertcart.is/products/806581034-obd-battery-saver-for-car-ecu-memory-backup-dual-display
store_origin: IS
region: Iceland
---

# Precision leakage detection Dual-display voltage & current Built-in overload protection OBD Battery Saver for Car ECU Memory Backup – Dual Display Voltage/Current Monitor, Leakage Detection & Overload Protection, ABS Housing, Green

**Brand:** joyousmall
**Price:** 4338 kr
**Availability:** ✅ In Stock

## Summary

> 🔧 Keep your car’s brain powered and protected—because your ride deserves smart care.

## Quick Answers

- **What is this?** OBD Battery Saver for Car ECU Memory Backup – Dual Display Voltage/Current Monitor, Leakage Detection & Overload Protection, ABS Housing, Green by joyousmall
- **How much does it cost?** 4338 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/806581034-obd-battery-saver-for-car-ecu-memory-backup-dual-display)

## Best For

- joyousmall enthusiasts

## Why This Product

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

## Key Features

- • **ECU Memory Backup:** Keep your car’s adaptive settings and radio codes intact while swapping batteries.
- • **Real-Time Dual Display:** Simultaneously monitor voltage & current for pinpoint diagnostics during battery swaps.
- • **Leakage Detection Alert:** Catch subtle battery leaks early to avoid costly ECU damage and data loss.
- • **Future-Proof Software Upgrades:** Stay ahead with firmware updates via OBD-II for evolving vehicle compatibility.
- • **Surge-Proof Overload Protection:** Automatic shutdown safeguards sensitive electronics from dangerous current spikes.

## Overview

The OBD Battery Saver is a professional-grade automotive tool designed to maintain stable 12V power to your vehicle’s ECU during battery replacement. Featuring dual digital displays for real-time voltage and current monitoring, it detects electrical leakage, protects against overloads, and supports firmware upgrades via OBD-II. Housed in durable ABS, it ensures your car’s critical settings and adaptive systems remain intact, making it an essential device for mechanics and DIY enthusiasts focused on precision and reliability.

## Description

Features:*Dual Display Functionality: This tool features a dual digital display that simultaneously shows both voltage and current readings, providing real-time monitoring for accurate diagnostics and battery management.*Leakage Detection: Equipped with advanced leakage detection capabilities, it helps identify any battery or electrical system leaks, safety and potential damage.*Convenient Battery Replacement: Designed to power the vehicle's ECU during battery replacement, it safeguards important data, any loss of settings or for configurations.*Overload Protection: The device includes built-in overload protection, which helps prevent damage to the vehicle’s electrical systems by automatically shutting down in case of excessive load.*Software Upgrade Capability: With the option for software upgrades, this tool stays up-to-date with the latest features and improvements, enhancing its functionality and performance over time.Specifications:Part Name:OBD replacement batteryMaterial:ABSSize:As shown in the figureColor:greenPackage Content:1*OBD replacement batteryNote:1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.

## Features

- [DUAl-DISPLAY REAL-TIME MONITORING]: Shows voltage and current simultaneously on two digital screens for precise diagnostics during car computer battery replacement or ECU memory preservation—ideal for mechanics and DIY enthusiasts working with OBD systems.
- [PRECISION BATTERY LEAKAGE DETECTION]: Identifies subtle electrical leakage in vehicle battery circuits and ECU power lines, helping prevent unexpected data loss, system resets, or long-term wiring damage during maintenance.
- [ECU MEMORY SAFEGUARD DURING BATTERY SWAP]: Maintains stable 12V power to the vehicle’s engine control unit while replacing the main battery—ensures radio codes, adaptive learning settings, and custom configurations remain intact.
- [BUILT-IN OVERLOAD PROTECTION]: Automatically cuts off output if current exceeds safe thresholds, shielding sensitive automotive electronics—including CAN bus modules and sensor networks—from surge-related harm.
- [SOFTWARE-UPGRADABLE PLATFORM]: Supports future firmware updates via standard OBD-II interface, enabling enhanced compatibility with newer vehicle models and expanded diagnostic functionality over time.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0GP6TGHCL |
| Brand Name | JoyousMall |
| Country Of Origin | China |
| Manufacturer | JoyousMall |

## Images

![OBD Battery Saver for Car ECU Memory Backup – Dual Display Voltage/Current Monitor, Leakage Detection & Overload Protection, ABS Housing, Green - Image 1](https://m.media-amazon.com/images/I/51963yC24jL.jpg)
![OBD Battery Saver for Car ECU Memory Backup – Dual Display Voltage/Current Monitor, Leakage Detection & Overload Protection, ABS Housing, Green - Image 2](https://m.media-amazon.com/images/I/61+M3BAXqfL.jpg)
![OBD Battery Saver for Car ECU Memory Backup – Dual Display Voltage/Current Monitor, Leakage Detection & Overload Protection, ABS Housing, Green - Image 3](https://m.media-amazon.com/images/I/51qcpGtmooL.jpg)
![OBD Battery Saver for Car ECU Memory Backup – Dual Display Voltage/Current Monitor, Leakage Detection & Overload Protection, ABS Housing, Green - Image 4](https://m.media-amazon.com/images/I/71jHQsY1cvL.jpg)
![OBD Battery Saver for Car ECU Memory Backup – Dual Display Voltage/Current Monitor, Leakage Detection & Overload Protection, ABS Housing, Green - Image 5](https://m.media-amazon.com/images/I/51TtWqh+2+L.jpg)

---

## 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.is/products/806581034-obd-battery-saver-for-car-ecu-memory-backup-dual-display](https://www.desertcart.is/products/806581034-obd-battery-saver-for-car-ecu-memory-backup-dual-display)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-18*