---
product_id: 251372588
title: "QWORK Battery Monitor Voltmeter Ammeter, Voltage Current Range 8V-80V, 0-100A Voltage Current Meter with 6.5 ft Custom Cable"
brand: "qwork"
price: "S$60"
currency: SGD
in_stock: true
reviews_count: 12
category: "Qwork"
url: https://www.desertcart.sg/products/251372588-qwork-battery-monitor-voltmeter-ammeter-voltage-current-range-8v-80v
store_origin: SG
region: Singapore
---

# 8V-80V voltage range 6.5 ft custom cable for flexible installation 0-100A high precision current detection QWORK Battery Monitor Voltmeter Ammeter, Voltage Current Range 8V-80V, 0-100A Voltage Current Meter with 6.5 ft Custom Cable

**Brand:** qwork
**Price:** S$60
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay Powered, Stay Ahead: The Ultimate Battery Monitor for the Modern Pro

## Quick Answers

- **What is this?** QWORK Battery Monitor Voltmeter Ammeter, Voltage Current Range 8V-80V, 0-100A Voltage Current Meter with 6.5 ft Custom Cable by qwork
- **How much does it cost?** S$60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/251372588-qwork-battery-monitor-voltmeter-ammeter-voltage-current-range-8v-80v)

## Best For

- qwork enthusiasts

## Why This Product

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

## Key Features

- • **Smart Data Retention:** Automatically saves your last test data even after shutdown—never lose track of your battery status.
- • **Universal Compatibility:** Perfect for e-bikes, RVs, boats, golf carts, and more—one device to rule all your battery-powered gear.
- • **Crystal Clear LCD Display:** Large backlit screen shows voltage, current, consumed power, and battery capacity at a glance.
- • **Precision Battery Insights:** Monitor your battery like a fuel gauge with ultra-accurate voltage and current readings.
- • **Effortless Setup & Customization:** Plug-and-play with a 6.5 ft cable and customizable battery specs for pinpoint accuracy.

## Overview

The QWORK Battery Monitor Voltmeter Ammeter offers precise voltage (8V-80V) and current (0-100A) monitoring with a large backlit LCD and 6.5 ft custom cable. Designed for versatile use across e-bikes, RVs, boats, and more, it automatically stores your last test data and provides real-time battery health insights, empowering professionals to optimize battery performance with confidence.

## Description

Buy QWORK Battery Monitor Voltmeter Ammeter, Voltage Current Range 8V-80V, 0-100A Voltage Current Meter with 6.5 ft Custom Cable: Ammeters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works with lithium - Very easy to wire and set up after looking at U tube on programming. Plenty of battery information for such a reasonable price. Highly recommendsmart and accurate
Review: 48v Golf Cart. Works great once you get it setup correctly. - Installed on a EZGO 48V golf cart. Install was pretty straightforward. Drilled hole in dash for meter. Diagram was pretty easy to understand, but the initial setup instructions were a little tough. Looks like they used Google translate from Chinese to English. For those who left negative reviews saying the meter wasn't accurate, im curious if they didn't input the correct specs for their batteries. You have to input how many amp hours your batteries are and what voltage the batteries are considered dead in order for the meter to know when they are dead. The meter is very accurate but only if you input the correct battery specs. For example, my 160amp hour 48V batteries should remain above 42V under load or 46V idle. As soon as the meter registers the batteries are below 42V it will automatically jump the gauge to zero percent charge. Or once 160amp hours have been used it will show zero percent charge. Saw some reviews complaining about this. The next issue I had was after recharging the cart, the gauge wouldn't register that the batteries were charging. Turns out you have to move the Negative charger lead from the battery post, to the "P-" post of the shunt in order for the meter to register the batteries are charging.

## Features

- Battery Condition - High precision Current detection. You can read the battery bank like a fuel gauge, and also clear note the battery status.
- LCD displays - Large backlit LCD displays multiple battery information (voltage, current, consumed power and battery capacity)
- Data storage - designed to automatically store the last testing data when the system shuts off Voltage Capacity - voltage range 8V-80V and current range 0-100A
- Wide Application - It is suitable for mobile and portable equipment, balance cars, cleaning machines,e-bike, instruments, RV, Boat, Caravan etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08HWFPGL5 |
| Best Sellers Rank | #32,927 in Automotive ( See Top 100 in Automotive ) #6 in Automotive Replacement Amp Meter Gauges |
| Brand | QWORK |
| Color | Black |
| Date First Available | September 12, 2020 |
| Item Weight | 8.8 ounces |
| Item model number | WD3941 |
| Manufacturer | QWORK |
| Maximum Operating Voltage | 80 Volts |
| Measurement Type | Ammeter, Voltmeter |
| Min. Operating Voltage | 8 Volts |
| Package Dimensions | 6.02 x 5.98 x 2.05 inches |
| Power Source | Battery Powered |
| Style | Voltage |
| UPC | 792332966894 |

## Product Details

- **Brand:** QWORK
- **Color:** Black
- **Item Weight:** 250 Grams
- **Power Source:** Battery Powered
- **Style:** Voltage

## Images

![QWORK Battery Monitor Voltmeter Ammeter, Voltage Current Range 8V-80V, 0-100A Voltage Current Meter with 6.5 ft Custom Cable - Image 1](https://m.media-amazon.com/images/I/71drQVfQnsL.jpg)

## Questions & Answers

**Q: Can the flashing screen be turned off when charging?**
A: Long press the left and right keys at the same time.

**Q: Unit appears to go to sleep mode, meaning there is no display at all with voltage applied. button press turns on the device then works ok. Fix for it?**
A: When the battery is neither charging or discharging the screen turns off. When not connected to the grid, which is the usual case with me, generally the screen will go dark around sunset or sunrise when the demands from my RV equal the power produced by my solar panels. When connected to the grid and my battery disconnected from the RV, the screen will be dark half the time. It lights up when my Morningstar charger decides my battery needs a modest "topping off."  It should be noted that the screen goes dark even when the charger is in float mode, the current being so modest as to be almost undectable.

**Q: Does it display 1/10, 1/100 or 1/1000 of a volt?**
A: 1/100.

**Q: how long has anyone extended their display cable**
A: I added 15ft to my original 13ft cable using CAT5 cable - just cut the existing cable in half and soldered the CAT5 in the middle. The original cable has a shield wire that connects to one of the pins; my CAT5 cable didn't have a shield but I combined the four white wires in the CAT5 and used that combined wire to connect to the shield wire. That left 4 wires in the CAT5 to connect to the remaining 4 wires of the original cable. The result worked fine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works with lithium
*by D***S on November 6, 2025*

Very easy to wire and set up after looking at U tube on programming. Plenty of battery information for such a reasonable price. Highly recommendsmart and accurate

### ⭐⭐⭐⭐⭐ 48v Golf Cart. Works great once you get it setup correctly.
*by B***N on August 16, 2024*

Installed on a EZGO 48V golf cart. Install was pretty straightforward. Drilled hole in dash for meter. Diagram was pretty easy to understand, but the initial setup instructions were a little tough. Looks like they used Google translate from Chinese to English. For those who left negative reviews saying the meter wasn't accurate, im curious if they didn't input the correct specs for their batteries. You have to input how many amp hours your batteries are and what voltage the batteries are considered dead in order for the meter to know when they are dead. The meter is very accurate but only if you input the correct battery specs. For example, my 160amp hour 48V batteries should remain above 42V under load or 46V idle. As soon as the meter registers the batteries are below 42V it will automatically jump the gauge to zero percent charge. Or once 160amp hours have been used it will show zero percent charge. Saw some reviews complaining about this. The next issue I had was after recharging the cart, the gauge wouldn't register that the batteries were charging. Turns out you have to move the Negative charger lead from the battery post, to the "P-" post of the shunt in order for the meter to register the batteries are charging.

### ⭐⭐⭐⭐⭐ Works for my needs
*by T***T on July 21, 2025*

This product works well in my setup on my camper battery bank. The directions were easy to follow and installation was straightforward. The battery percent setting and amp readings are accurate. My only gripe is that it was difficult finding wire small enough to fit into the power clamp box and the amp hour reading doesn’t match my battery setup. It assumed I had 100 amp hours and in reality my batty bank is 260 amp hours. Otherwise this works great.

## Frequently Bought Together

- QWORK Battery Monitor Voltmeter Ammeter, Voltage Current Range 8V-80V, 0-100A Voltage Current Meter with 6.5 ft Custom Cable
- EZGO RXV&TXT Smart Charger - 48V 13A and 36V 18A Trickle Battery Charger, Delta-Q 3-Pin, Lithium, LiFePO4, Lead-Acid AGM/Gel/SLA
- LiTime 12V 100Ah LiFePO4 Battery BCI Group 31 Lithium Battery Built-in 100A BMS, Up to 15000 Deep Cycles, Perfect for RV, Marine, Home Energy Storage（4 Packs）

---

## 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.sg/products/251372588-qwork-battery-monitor-voltmeter-ammeter-voltage-current-range-8v-80v](https://www.desertcart.sg/products/251372588-qwork-battery-monitor-voltmeter-ammeter-voltage-current-range-8v-80v)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-14*