---
product_id: 120815198
title: "AiLi Voltmeter Ammeter Voltage Current Meter Voltmeter Ammeter 100V 350A Caravan RV Motorhome 999 AH"
brand: "hengshan"
price: "S/.277"
currency: PEN
in_stock: true
reviews_count: 9
category: "Hengshan"
url: https://www.desertcart.pe/products/120815198-aili-voltmeter-ammeter-voltage-current-meter-voltmeter-ammeter-100v-350a
store_origin: PE
region: Peru
---

# 8-100V universal voltage range ±1.0% measurement accuracy 999Ah max battery capacity AiLi Voltmeter Ammeter Voltage Current Meter Voltmeter Ammeter 100V 350A Caravan RV Motorhome 999 AH

**Brand:** hengshan
**Price:** S/.277
**Availability:** ✅ In Stock

## Summary

> 🔌 Power up your battery IQ — never get caught off-guard again!

## Quick Answers

- **What is this?** AiLi Voltmeter Ammeter Voltage Current Meter Voltmeter Ammeter 100V 350A Caravan RV Motorhome 999 AH by hengshan
- **How much does it cost?** S/.277 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/120815198-aili-voltmeter-ammeter-voltage-current-meter-voltmeter-ammeter-100v-350a)

## Best For

- hengshan enthusiasts

## Why This Product

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

## Key Features

- • **Night-Ready Display:** Backlit LCD screen glows softly for easy monitoring even in the darkest environments.
- • **Universal Compatibility:** Works flawlessly with lithium, lead-acid, NiMH batteries from 8V to 100V and up to 350A current.
- • **Memory-Powered Reliability:** Automatically saves your last readings so you never lose track of your battery’s health.
- • **Effortless Installation & Use:** Plug-and-play design with a compact 2 1/8” cutout fits perfectly in any RV, caravan, or e-bike setup.
- • **All-in-One Battery Intelligence:** Monitor voltage, current, and capacity in one sleek device for smarter energy management.

## Overview

The AiLi Voltmeter Ammeter is a precision battery monitor designed for professional-grade battery management in caravans, RVs, e-bikes, and more. It supports a wide voltage range (8-100V) and high current (up to 350A), accurately tracking state of charge, voltage, current, and amp-hour capacity (up to 999Ah). With automatic data memory, a clear backlit LCD, and universal battery compatibility, it empowers users to optimize battery life and avoid unexpected failures with simple, reliable monitoring.

## Description

This Battery Monitor is designed to monitor performance most kind of battery systems with capacities of up to 999 Amp hours. Read your battery bank like a fuel gauge. Battery Status at a glance. Combines many functions in one, these information leads to more efficient use of the battery, which can enhance battery life and reduce the risk of failure. State of Charge (%),The remaining battery capacity (AH). Charge and discharge current (A), Voltage (V). Charging status indicator, looks like a smartphone. It is suitable for mobile and portable equipments, e-bike, balance cars, cleaning machines, instruments, ups and so on. This item is suitable for lithium batteries, lithium iron phosphate batteries, lead-acid batteries and nickel-metal hydride batteries which working voltage is from 8V to 100V. Have memory function. Doesn't require isolated power, self-powered 8-80V. It is very easy to install. Specifications Working voltag: 8.0-100.0 V Current range: -350~+350 amps Capacity range: 0-999 ampere-hour Working consumption: 10.0-12.0 mA Standby consumption: 0.5-0.6 mA Sleep consumption: 50-60 uA Voltage accuracy: ± 1.0 % Current accuracy: ± 1.0 % Capacity accuracy: ± 1.0 % Preset capacity value: 0.1-999 Ah Temperature range: 0-35℃ Weight: 400g Size: ø59mm*20 mm Mounting hole: diameter 54mm The auction includes 1 x Battery monitor 1 x Current sampler 1 x 2 meters long cable 1 x English operation manual

Review: Excellent , simple , accurate unit - Worked perfectly right out of the box. Nice heavy duty acrylic base and super heavy hardware. Simple operation is refreshing in this overly gimmicky app-inundated world we live in. Some other manufacturers could take notes from this monitor! Others have said there is no way to secure it into your cutout if you can’t access the back. I can confirm that. However , a 2 1/8” hole saw produces a perfect fit in plywood. I didn’t need it but one could add a single layer of electrical tape around the perimeter for a super snug fit. Yes, cord is too short. Ended up being just enough for my application. You can extend it without too much trouble. It’s a standard 5 pin JST-XH. Battery sampling wire I used was 18awg. The screw terminals on top of the unit worked great. Philips, very small. Consider tinning the end of your wire and then smashing it flat and trimming it square for a good connection. 18 gauge is probably about as big as it will accept. Even the backlight is great. When the backlight is turned off the screen still glows ever so slightly so you can read it. Perfect for nighttime in the woods. The screen is quite shiny so consider glare from windows when installing. The accuracy of any monitor depends on your configuration! For my one year old AGMs I used 50% of the rated capacity and charged them up fully with a good 3 stage charger before connecting this monitor. Then set the current SOC to 100 and forgot about it. I set zero % SOC voltage to 10.1. Have a couple weeks camping in the RV so far with good results.
Review: Fine little monitor - Got this monitor for my Chevy Roadtrek RV based on its simplicity and price. I wasn't disappointed a bit. Simple installation (except that you will need a cable to go from the shunt to the positive post of the battery--something I had to fabricate for myself) and the monitor pops into a 2 1/8" hole. Works from the get-go. Calibrate it, and from then on you can read off the percentage of charge in the battery, both when charging and discharging. Things to be aware of: 1. You will need to make up your own cable from one side of the shunt to the + side of the battery. 2. The connecting cable they give you from the shunt to the monitor is much too short. I had to slice in a 5-conductor cable of my own making. 3. The instructions say the hole size of 50.4 mm (or something like that). Try to find hole saw that size. Turns out a 2 1/8" hole saw will make a perfect size hole. 4. The instructions are in ity-bity font size, and the graphics of the buttons are pitifully small and impossible to read. I had to take a picture, enlarge it and put my own icons on the result to be able to figure out what to do. 5. The button labels are hard to read. Too small and the graphics have almost no contrast. Now, if you are ok with all that, you will have a fine little battery monitor that tells you pretty much all you need to know about the state of your battery. I like mine and didn't mind that it turned out to be a project to install it.

## Features

- Read your battery bank like a fuel gauge, battery status at a glance.
- Combines many functions in one, these information leads to more efficient use of the battery, which can enhance battery life and reduce the risk of failure.
- State of Charge (%),The remaining battery capacity ( up to 999AH). Charge and discharge current (A), Voltage (V).
- Data storage - designed to automatically store the last testing data when system shuts off
- Universal Battery Monitor- voltage range 8V-100V and up to 350A

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FGFFHC6 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #135,619 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #16,158 in Electrical Equipment |
| Brand | HENGSHAN |
| Color | Black, Gray, gold |
| Cord Length | 2 Meters |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,965) |
| Date First Available | June 20, 2018 |
| Display Style | LCD |
| Included Components | Meter, 2M Cable, Current Shunt, Manual |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 14.1 ounces |
| Item model number | TR16-350A |
| Manufacturer | Elite element |
| Material | Plastic |
| Measurement Accuracy | ± 1.0 % |
| Part Number | US-TR16-80V350A |
| Power Source | Dc |
| Shape | Round |
| Size | 8-80V,0-350A |
| Style | Voltage Tester |
| UPC | 655779539963 |
| Voltage | 100 Volts |

## Product Details

- **Brand:** HENGSHAN
- **Item Weight:** 400 Grams
- **Material:** Plastic
- **UPC:** 655779539963
- **Voltage:** 100 Volts

## Images

![AiLi Voltmeter Ammeter Voltage Current Meter Voltmeter Ammeter 100V 350A Caravan RV Motorhome 999 AH - Image 1](https://m.media-amazon.com/images/I/31-wWsm6yDL.jpg)
![AiLi Voltmeter Ammeter Voltage Current Meter Voltmeter Ammeter 100V 350A Caravan RV Motorhome 999 AH - Image 2](https://m.media-amazon.com/images/I/3100TXG-RCL.jpg)
![AiLi Voltmeter Ammeter Voltage Current Meter Voltmeter Ammeter 100V 350A Caravan RV Motorhome 999 AH - Image 3](https://m.media-amazon.com/images/I/415VcaMj5oL.jpg)
![AiLi Voltmeter Ammeter Voltage Current Meter Voltmeter Ammeter 100V 350A Caravan RV Motorhome 999 AH - Image 4](https://m.media-amazon.com/images/I/41B52oHQ3QL.jpg)
![AiLi Voltmeter Ammeter Voltage Current Meter Voltmeter Ammeter 100V 350A Caravan RV Motorhome 999 AH - Image 5](https://m.media-amazon.com/images/I/41IJWgPKdYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent , simple , accurate unit
*by A***R on February 19, 2024*

Worked perfectly right out of the box. Nice heavy duty acrylic base and super heavy hardware. Simple operation is refreshing in this overly gimmicky app-inundated world we live in. Some other manufacturers could take notes from this monitor! Others have said there is no way to secure it into your cutout if you can’t access the back. I can confirm that. However , a 2 1/8” hole saw produces a perfect fit in plywood. I didn’t need it but one could add a single layer of electrical tape around the perimeter for a super snug fit. Yes, cord is too short. Ended up being just enough for my application. You can extend it without too much trouble. It’s a standard 5 pin JST-XH. Battery sampling wire I used was 18awg. The screw terminals on top of the unit worked great. Philips, very small. Consider tinning the end of your wire and then smashing it flat and trimming it square for a good connection. 18 gauge is probably about as big as it will accept. Even the backlight is great. When the backlight is turned off the screen still glows ever so slightly so you can read it. Perfect for nighttime in the woods. The screen is quite shiny so consider glare from windows when installing. The accuracy of any monitor depends on your configuration! For my one year old AGMs I used 50% of the rated capacity and charged them up fully with a good 3 stage charger before connecting this monitor. Then set the current SOC to 100 and forgot about it. I set zero % SOC voltage to 10.1. Have a couple weeks camping in the RV so far with good results.

### ⭐⭐⭐⭐⭐ Fine little monitor
*by G***T on June 14, 2021*

Got this monitor for my Chevy Roadtrek RV based on its simplicity and price. I wasn't disappointed a bit. Simple installation (except that you will need a cable to go from the shunt to the positive post of the battery--something I had to fabricate for myself) and the monitor pops into a 2 1/8" hole. Works from the get-go. Calibrate it, and from then on you can read off the percentage of charge in the battery, both when charging and discharging. Things to be aware of: 1. You will need to make up your own cable from one side of the shunt to the + side of the battery. 2. The connecting cable they give you from the shunt to the monitor is much too short. I had to slice in a 5-conductor cable of my own making. 3. The instructions say the hole size of 50.4 mm (or something like that). Try to find hole saw that size. Turns out a 2 1/8" hole saw will make a perfect size hole. 4. The instructions are in ity-bity font size, and the graphics of the buttons are pitifully small and impossible to read. I had to take a picture, enlarge it and put my own icons on the result to be able to figure out what to do. 5. The button labels are hard to read. Too small and the graphics have almost no contrast. Now, if you are ok with all that, you will have a fine little battery monitor that tells you pretty much all you need to know about the state of your battery. I like mine and didn't mind that it turned out to be a project to install it.

### ⭐⭐⭐⭐ good value
*by S***U on May 26, 2025*

first of all it is ridiculous that they don't include the small red wire used to power the unit from the red terminal, it would cost them five cents. minus one star for that. second you should know that the cable from the meter will not plug directly into the shunt, but rather the long extension cable is actually an adapter cable that must be used to make the connection. kind of annoying if you don't need the length. that being said I did a quick and dirty install for my trolling motor and the unit was easy to set up and seems to work well. as for accuracy, my understanding is that this does not actually monitor your battery, but works more like your electric meter at home, just measuring the current that runs past it. it works on the assumption that your battery is still functioning at peak amp hours and is fully charged. still that should be good enough for most purposes.

## Frequently Bought Together

- AiLi Voltmeter Ammeter Voltage Current Meter Voltmeter Ammeter 100V 350A Caravan RV Motorhome 999 AH
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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-02-06*