---
product_id: 125704381
title: "AILI® DC 0-90V 0-500A Voltage Current AH Capacity Battery Monitor Capacity BatteryTester Volt Meter Ampere"
brand: "aili"
price: "12817 som"
currency: KGS
in_stock: true
reviews_count: 11
category: "Ai Li"
url: https://www.desertcart.kg/products/125704381-aili-dc-0-90v-0-500a-voltage-current-ah-capacity
store_origin: KG
region: Kyrgyzstan
---

# 0-90V voltage range Displays voltage, current, Ah, power 0-500A current capacity AILI® DC 0-90V 0-500A Voltage Current AH Capacity Battery Monitor Capacity BatteryTester Volt Meter Ampere

**Brand:** aili
**Price:** 12817 som
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay ahead of your power game — never get caught powerless again!

## Quick Answers

- **What is this?** AILI® DC 0-90V 0-500A Voltage Current AH Capacity Battery Monitor Capacity BatteryTester Volt Meter Ampere by aili
- **How much does it cost?** 12817 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/125704381-aili-dc-0-90v-0-500a-voltage-current-ah-capacity)

## Best For

- aili enthusiasts

## Why This Product

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

## Key Features

- • **Smart Safety Alarms:** Programmable internal alarms with relay control protect against over/under voltage, current, power, and time.
- • **Precision Power Tracking:** High accuracy readings with ±0.1% voltage and ±0.5% current precision keep you in control.
- • **DIY-Friendly Installation:** Compact embedded design with flexible calibration and included shunt makes setup straightforward for pros and enthusiasts.
- • **Modular & Intuitive Design:** Indicator lights and modular panel layout provide instant status updates for seamless monitoring.
- • **Comprehensive Battery Insights:** Monitor voltage, current, consumed amp-hours, power, and working hours all on a dual 4-digit LED display.

## Overview

The AILI® DC 0-90V 0-500A Battery Monitor is a high-precision, multi-function meter designed for professional-grade battery management. It continuously tracks voltage, current, amp-hours, power, and working hours with a bright dual 4-digit LED display. Featuring programmable alarms and relay controls, it safeguards your battery system from over-voltage, over-current, and other risks. Its modular design and DIY-friendly installation make it ideal for millennial managers who demand reliable, real-time battery insights to optimize performance and extend battery life.

## Description

The DCM9040 Battery MonitorThe unit is designed to monitor performance most kind of battery systems, it continuously monitors voltage, discharge current, number of power, consumed amp hours, these information leads to more efficient use of the battery, which can enhance battery life and reduce the risk of failure. Combines many functions in one, Dual display. *Voltage (V), Power (W), Current (A), Ampere-hour (Ah), Working Hours (H). It is equipped with an internal programmable alarm, to run a generator when needed or to turn off devices when the battery voltage exceeds programmable boundaries (relay required).*[OVP] Over Voltage protection *[LOP] Low Voltage protection *[OCP] Over Current protection *[OAH] Over Charge protection *[OPP] Over Power protection *[OFT] Over Time protection Flexible On-line calibration function, calibrate Voltage and amps reading easily. Adopting modular design, collocate indicator lights on the panel for various working status 4 digits LED, High accuracy It can measure currents up to 400 amps, capacity up 999 amp hours. It can be powered by the same source being measured(5-40V). It is easy to enable simple DIY installation. Technical Specification Power Supply: 5~40V (external/Internal power supply) Measuring range: 0-90V/0-500A (external power), 5-40V/0-500A (external power) Display Type: 7 segment 4digits Red LED Sampling rate: 5 readings per second Accuracy: Volt ± 0.1% + 2byte / Amp ± 0.5% + 3byteResolution: 0.01V, 0.01A, 0.01W, 0.01Ah, 0.01H Package including 1x Battery Monitor 1x Shunt 1x Installation instruction

Review: Great power meter, especially for the price! - I installed this meter in my travel trailer with a 100W solar panel. I've taken it on a few trips and I really like this meter, especially for the price. I think it does all that I need and can't see why I would spend $150-$300 for one of the better known power meters. Installation took some work, but no more than for any similar power meter. I use this meter all the time and never look at the display of the solar controller. I always know how much power I have in my battery and what charge/discharge is happening. Cons: The current meter has a light that indicates if it is charging (off means it is discharging), but does not indicate positive or negative, so you kind of need to look to determine if the current is flowing in or out of battery. Most of the time, you will know (i.e. the sun is out and the panel is pumping 4 or 5 Amps into the battery). I had to extend the wires of the current and voltage sensor, but home depot has shielded twisted pair that seemed to work just fine. The wiring diagrams provided with the unit have a couple of issues: 1) wiring the meter as indicated gives a resulting meter reading that does not include the meter power consumption - it's pretty small, so not a big deal. 2) The ground for the meter is electrically connected to one side of the current sense resistor on the sensing board - this isn't clearly explained anywhere, so you could hook it up and have all of the current pass through sensor board and you would get 0 Amps on the meter and maybe even fry the circuit board trace. Just follow the wiring diagrams and you'll be fine. Pros: I always have a really good idea how much power is in my battery - just like a gas gauge for your battery. I can easily tell how much current is coming or going from the battery - much more useful than the display on the solar charge controller which only tells you about the current from the solar panel. This functionality should be included as an option in all charge controllers IMO. I can figure out how much current all of the appliances in my rig consume.
Review: DOA, non functional - Connected per the instructions. The unit is non responsive, 12 volts are measured at the interface board screw lugs all the way to the display board solder pins. This means that 12 volts is making it through the cable to the display. Connected direct to a battery, and still dead. A replacement has been requested. We'll see. Heard back from the seller, was asked to connect voltage to the alternate terminals (V-Ext) although this worked, the unit should be powered from the main (V-in) terminals. Was asked to connect to both at the same time, I don't think this is satisfactory. A replacement unit was sent, installed, and the performance is better.

## Features

- Alarm, buzzer and relay control
- Optimized for 5V up to 90V battery systems
- Displays voltage, current, consumed amphours, Power
- Adopting modular design, collocate indicator lights on the panel for various working status
- High Accuracy, 1 year warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07CLVGNVG |
| Amperage Capacity | 500 Amps |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #971,430 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #98,217 in Electrical Equipment |
| Color | Red Led Display |
| Customer Reviews | 3.8 3.8 out of 5 stars (99) |
| Date First Available | June 16, 2016 |
| Display Style | Red LED |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 2.88 ounces |
| Item model number | EL9040B |
| Manufacturer | Elite Element |
| Material | Plastic |
| Mounting Type | Embedded |
| Part Number | HQ-PJA1-KE2S |
| Power Source | DC, Battery |
| Product Dimensions | 3.11 x 1.69 x 0.98 inches |
| Shape | Rectangle |
| Size | 0-90V,0-500A |

## Images

![AILI® DC 0-90V 0-500A Voltage Current AH Capacity Battery Monitor Capacity BatteryTester Volt Meter Ampere - Image 1](https://m.media-amazon.com/images/I/61UN0bN73XL.jpg)
![AILI® DC 0-90V 0-500A Voltage Current AH Capacity Battery Monitor Capacity BatteryTester Volt Meter Ampere - Image 2](https://m.media-amazon.com/images/I/51PB0fxUY7L.jpg)
![AILI® DC 0-90V 0-500A Voltage Current AH Capacity Battery Monitor Capacity BatteryTester Volt Meter Ampere - Image 3](https://m.media-amazon.com/images/I/51pzV5fvKoL.jpg)
![AILI® DC 0-90V 0-500A Voltage Current AH Capacity Battery Monitor Capacity BatteryTester Volt Meter Ampere - Image 4](https://m.media-amazon.com/images/I/51ecIjaxNrL.jpg)
![AILI® DC 0-90V 0-500A Voltage Current AH Capacity Battery Monitor Capacity BatteryTester Volt Meter Ampere - Image 5](https://m.media-amazon.com/images/I/616P4Xnw2ZL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great power meter, especially for the price!
*by H***T on July 2, 2018*

I installed this meter in my travel trailer with a 100W solar panel. I've taken it on a few trips and I really like this meter, especially for the price. I think it does all that I need and can't see why I would spend $150-$300 for one of the better known power meters. Installation took some work, but no more than for any similar power meter. I use this meter all the time and never look at the display of the solar controller. I always know how much power I have in my battery and what charge/discharge is happening. Cons: The current meter has a light that indicates if it is charging (off means it is discharging), but does not indicate positive or negative, so you kind of need to look to determine if the current is flowing in or out of battery. Most of the time, you will know (i.e. the sun is out and the panel is pumping 4 or 5 Amps into the battery). I had to extend the wires of the current and voltage sensor, but home depot has shielded twisted pair that seemed to work just fine. The wiring diagrams provided with the unit have a couple of issues: 1) wiring the meter as indicated gives a resulting meter reading that does not include the meter power consumption - it's pretty small, so not a big deal. 2) The ground for the meter is electrically connected to one side of the current sense resistor on the sensing board - this isn't clearly explained anywhere, so you could hook it up and have all of the current pass through sensor board and you would get 0 Amps on the meter and maybe even fry the circuit board trace. Just follow the wiring diagrams and you'll be fine. Pros: I always have a really good idea how much power is in my battery - just like a gas gauge for your battery. I can easily tell how much current is coming or going from the battery - much more useful than the display on the solar charge controller which only tells you about the current from the solar panel. This functionality should be included as an option in all charge controllers IMO. I can figure out how much current all of the appliances in my rig consume.

### ⭐⭐⭐⭐ DOA, non functional
*by C***M on August 3, 2019*

Connected per the instructions. The unit is non responsive, 12 volts are measured at the interface board screw lugs all the way to the display board solder pins. This means that 12 volts is making it through the cable to the display. Connected direct to a battery, and still dead. A replacement has been requested. We'll see. Heard back from the seller, was asked to connect voltage to the alternate terminals (V-Ext) although this worked, the unit should be powered from the main (V-in) terminals. Was asked to connect to both at the same time, I don't think this is satisfactory. A replacement unit was sent, installed, and the performance is better.

### ⭐⭐⭐⭐⭐ Super!!!
*by S***R on March 3, 2026*

100% OK!!!

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-05-06*