---
product_id: 137259846
title: "5A 12V Automatic Smart Battery Charger Automotive Maintainer 7-Stages Trickle for Deep Cycle Car Marine Trolling Motor Boat Truck Lawn Mower RV AGM with Terminal Cleaning Brush"
brand: "adpow"
price: "¥13954"
currency: JPY
in_stock: true
reviews_count: 6
category: "Adpow"
url: https://www.desertcart.jp/products/137259846-5a-12v-automatic-smart-battery-charger-automotive-maintainer-7-stages
store_origin: JP
region: Japan
---

# 5A smart charging current 7-stage intelligent battery care Multi-layer safety protection 5A 12V Automatic Smart Battery Charger Automotive Maintainer 7-Stages Trickle for Deep Cycle Car Marine Trolling Motor Boat Truck Lawn Mower RV AGM with Terminal Cleaning Brush

**Brand:** adpow
**Price:** ¥13954
**Availability:** ✅ In Stock

## Summary

> 🔌 Power up smarter — never get stranded with ADPOW’s intelligent battery lifeline!

## Quick Answers

- **What is this?** 5A 12V Automatic Smart Battery Charger Automotive Maintainer 7-Stages Trickle for Deep Cycle Car Marine Trolling Motor Boat Truck Lawn Mower RV AGM with Terminal Cleaning Brush by adpow
- **How much does it cost?** ¥13954 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/137259846-5a-12v-automatic-smart-battery-charger-automotive-maintainer-7-stages)

## Best For

- adpow enthusiasts

## Why This Product

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

## Key Features

- • **Robust Safety Suite:** Built-in protections guard against short circuits, overloads, reverse polarity & overvoltage.
- • **7-Stage Smart Charging:** Advanced MCU-controlled process maximizes battery lifespan with modes like Desulfation & Recondition.
- • **Compact & Durable Design:** Ultra-portable, water & dust resistant with mounting holes for garage or on-the-go convenience.
- • **Universal 12V Compatibility:** Effortlessly charges Pb, SLA, GEL, AGM, VRLA & flooded batteries for cars, boats, RVs & more.
- • **Bonus Terminal Cleaning Brush:** Keep battery terminals pristine for optimal connection and charging efficiency.

## Overview

The ADPOW 5A 12V Automatic Smart Battery Charger delivers a sophisticated 7-stage charging cycle controlled by an MCU, designed to revive and maintain a wide range of 12V lead-acid batteries including AGM and deep cycle types. Its compact, rugged design features multi-protection safety mechanisms and includes a handy terminal cleaning brush, making it an essential tool for professionals and enthusiasts who demand reliable battery performance and longevity across automotive, marine, and recreational applications.

## Description

desertcart.com: ADPOW 5A 12V Automatic Smart Battery Charger Automotive Maintainer 7-Stages Trickle for Deep Cycle Car Marine Trolling Motor Boat Truck Lawn Mower RV AGM with Terminal Cleaning Brush : Automotive

Review: Excellent intelligent battery charging device for the price -- restored my AGM battery! - *** UPDATE March 2023 *** I had to leave my car alone for a little over a month, and I could barely start it. Voltage was showing 12.1v. I ran the ADPOW for 12 hours straight, during which it showed a "recondition" mode. Well, after it finished, it showed 12.7v! However, I knew this wouldn't last. But resting voltage settled at 12.55v. That's really good, for a 6 year old AGM battery that has suffered a few deep discharges. The ADPOW has saved me again! _____________________________________________________________________________________ *** UPDATE April 2022 *** So my last update was 2 years ago. Guess what? I'm still running the same battery! And my estimate on how much charge it was holding was off a bit. It seems to be more like 80%. I haven't been driving much these days (COVID pandemic changed things) and at one point I'd let two period of two full weeks without running my car. The battery was showing a low charge--still enough to start, but I knew it was time to refresh it. I ran the ADPOW charger again on it. Performance is back up to par. A month later and my multi-meter checks of the battery show I'm averaging around 12.50 volts. Hopefully I can go another year or more with my current AGM battery. _____________________________________________________________________________________ *** UPDATE Nov 7th 2020 *** My worn down AGM battery is still working fine. It's still holding about a 75% charge. I haven't had to run the battery charger since the last time when I wrote this review. So far so good! This was an excellent investment as it saved me from having to buy a brand new battery right away. I hope to get another year out of it, maybe more. Will report back again in due time. _____________________________________________________________________________________ I was discouraged by all the crazy looking car battery chargers / maintainers appearing on the market (most from unfamiliar Chinese names), many having suspiciously positive reviews. On top of that, old stalwart US brands like DeWalt, Black & Decker, and Stanley were coming up short of good solid reviews. So I took a chance on this particular "Smart Battery Charger" by ADPOW (short for "Add Power"). 1), the photos on the site do not do the unit justice. The wires are a solid 8 gauge in thickness. The connector setup is intelligently thought-out. The unit has a good heft without being too heavy, and it does not get overtly warm during use. The front panel with LED indicators is clean & tight. 2), the function design of this smart battery charger is perfect for consumer needs. I had been tempted to get a full fledged testing charger with all kinds of analyses possible. After doing enough research, I realized all of that would be lost on someone who is a simple car enthusiast. This charger does all you need it to do -- verify the battery is healthy & charge it up at a reasonable pace. The connector setup allows for the attachment of a special connector which is very handy if you plan on using this charger more than a few times each year. It makes attachment so very easy. Plus the unit has mounting holes so you can affix it to a wall or panel in your garage for convenience. Thirdly, it helped recover my car battery to a more workable state. It is a 3 year old AGM type and it gradually struggled under my infrequent usage of the car since I got it (not using the car for daily commuting, as I used to in the past). When I spent a weekend installing a new car stereo system, using the cabin light for hours and running the stereo for a while without the car running knocked the battery down for the count. It couldn't start the car. I did get a jump start and ran the car for a while, restoring decent voltage. It was working OK. However, I found that the battery was trending towards a resting voltage of 11.9v. At 11.5v it will not have enough power to start, so this was not good. The ADPOW unit cleared my battery as initially OK, started bulk charge, then after about 20 mins switched to absorption charge (meaning a lower steady constant voltage). My multi-meter confirmed the unit was delivering 14.5v, the same you'd get from the car's alternator. After about 4 hours, the charger switched to "Recondition." I had expected this, since the battery had suffered a deep discharge. My multi-meter showed the input voltage from the ADPOW stepped up to 15.5v. At the end of another 4 hours, the "FULLY CHARGED" green indicator lit up. I tested the voltage of the battery and it initially showed 13.6v. After letting it sit for a day, I found the charge was resting at 12.25v. That's not a healthy battery (60%). 12.32v is 70%, 12.42v is 80%, 12.5v is 90%, and 12.7v is 100%. So I ran the charger again. It again went to recondition, but it took half the time. After this, resting voltage showed 12.45v. After driving the car and letting it sit for a day, it showed 12.35v. So my battery is now about 75% of original capacity, but still workable. I'll likely need to replace the battery towards the end of 2020, so the ADPOW charger saved me from having to replace it right away. I'm very happy with the design & performance of this unit. It's small enough to stow in your car's trunk or storage bin. I consider it a worthwhile investment for a reliable battery for its maximum life. By the way, do not skimp on your battery. It's worth spending more to get an AGM type. They are more robust and longer lasting than typical lead acid car batteries.
Review: good clamps and neat battery terminal cleaner brush - I have a dead car battery which I refuse to throw out. It's used for projects just to provide a relatively stable 12v rail. It can't provide the cold cranking amps required to start up my vehicle which is fine. I just bought a new one to replace. It's already been several years and I've had it sitting on a maintenance charger but after measuring the voltage, it has gone down. My little Battery Tender Jr wasn't up to the task of maintaining it anymore. It just couldn't provide enough juice. It would also read as "green" meaning it wasn't under charging mode but rather maintenance mode. So it just provided a float charge. Well, time to get something a bit more powerful. This 5A unit works well. It detected the battery right away and started doing a full charge. I tried the reconditioning function. Hopefully it'll do something but I don't have a heavy load to test on it nor do I have time to run a battery of tests (pun intended). Regardless, I know this battery is shot but I just figure I'll keep it around for miscellaneous projects. My impressions of the charger are good. The fit and finish look fine. No issues there. The clamps look sturdy. The wires seem heavy gauge and it's soldered to the clamps rather than simply crimped on. I like the fact that it's the clamps are housed in plastic. Don't let anyone tell you that's a bad thing. If it was housed in metal I would be afraid of making contact with one of the terminals and then accidentally touching another conductive surface. Anything to a) boost comfort when using the clamps and b) improve safety - is fine by me. I also have this thing about touching a bare metal positive clamp as if the power will surge through me. Go figure. The quick release connectors are also really useful. I want to measure the actual battery voltage without the charger influencing the results. Just use the quick release connectors. I stick my probes in there and voila. My battery and charger are actually awkwardly placed so it's not as convenient to test and use. Having anything to facilitate this is a bonus. Finally the terminal cleaners are a great bonus. I should have gotten something like this years ago. I always see crud built up on the positive terminal. I know it's only a few bucks which shouldn't influence my opinion but what can I say? I'm a simpleton. Throw a piece of candy in there why don't you? Overall, it works as promised. A simple 5A smart charger that I don't have to worry about misusing. My Battery Tender Jr will be relegated to smaller batteries.

## Features

- Intelligent Charging Mode: 7-stages automatic charging process [ Desulfation - SoftStart - BulkCharge - Absorbtion - TestMode - Recondition - Float] by MCU controller, the LED indicator provide visual feedback of battery capacity and diagnostic information accordingly, efficiently prolong the lifetime of the battery.
- Wide Application: Charge fully drained 12V Pb/SLA/GEL/AGM/VRLA/sealed lead-acid batteries and WET/FLOODED for maintenance, including lawn mower, boat, car, electric vehicle, electric tools, ride-on toys.
- Multi-Protection: Ensure ultimate safety protect against Short circuit/OVP/OCP/Overload/Polarity reversed,etc, full-loaded & burn-in test proved to be high efficiency and longevity.
- Customized Design: Ultra-compact, portable and lightweight with the mounting holes, non-slipping and easy to carry; Water and dust resistant make it more safe to use in any situations.
- What you Get: Come with smart battery charger with DC Adapters, with lifetime quality warranty & 30 days refund & timely after-sale service solve all your problems.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07QX9PKK8 |
| Best Sellers Rank | #507,852 in Automotive ( See Top 100 in Automotive ) #1,221 in Battery Chargers |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,195) |
| Date First Available | April 19, 2019 |
| Item Weight | 1.5 pounds |
| Manufacturer | ADPOW |
| Product Dimensions | 3.86 x 2.28 x 6.69 inches |

## Product Details

- **Brand:** ADPOW
- **Color:** Black, Blue, Red
- **Item Weight:** 1.5 Pounds
- **Output Voltage:** 12 Volts
- **Product Dimensions:** 2.28"D x 3.86"W x 6.69"H

## Images

![5A 12V Automatic Smart Battery Charger Automotive Maintainer 7-Stages Trickle for Deep Cycle Car Marine Trolling Motor Boat Truck Lawn Mower RV AGM with Terminal Cleaning Brush - Image 1](https://m.media-amazon.com/images/I/61bdw5VUPBL.jpg)

## Questions & Answers

**Q: Battery has been in abosorption mode for 3 days. Is something wrong?**
A: I would say something is probably wrong with the battery. I’ve never had the whole charging  process take more than 10-12 hours.

**Q: Can you charge a 6 volt lawn mower battery?**
A: The instructions state that this is for 12v batteries only, also the output is 12v,  so I do not believe it would be a good idea.

**Q: How can i tell if it is in "battery tender" mode and is trickle charging? it went through all of the stages through float and stays on fully charged,**
A: That means it's in float or maintenance, which is what you are looking for.

**Q: I have a small drain on my battery in 2018 jeep can I leave this charger hooked up to keep it charged for days?**
A: It will provide a continuous trickle charge. It depends on how fast your battery is draining as to whether or not it will keep up.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent intelligent battery charging device for the price -- restored my AGM battery!
*by G***K on January 8, 2020*

*** UPDATE March 2023 *** I had to leave my car alone for a little over a month, and I could barely start it. Voltage was showing 12.1v. I ran the ADPOW for 12 hours straight, during which it showed a "recondition" mode. Well, after it finished, it showed 12.7v! However, I knew this wouldn't last. But resting voltage settled at 12.55v. That's really good, for a 6 year old AGM battery that has suffered a few deep discharges. The ADPOW has saved me again! _____________________________________________________________________________________ *** UPDATE April 2022 *** So my last update was 2 years ago. Guess what? I'm still running the same battery! And my estimate on how much charge it was holding was off a bit. It seems to be more like 80%. I haven't been driving much these days (COVID pandemic changed things) and at one point I'd let two period of two full weeks without running my car. The battery was showing a low charge--still enough to start, but I knew it was time to refresh it. I ran the ADPOW charger again on it. Performance is back up to par. A month later and my multi-meter checks of the battery show I'm averaging around 12.50 volts. Hopefully I can go another year or more with my current AGM battery. _____________________________________________________________________________________ *** UPDATE Nov 7th 2020 *** My worn down AGM battery is still working fine. It's still holding about a 75% charge. I haven't had to run the battery charger since the last time when I wrote this review. So far so good! This was an excellent investment as it saved me from having to buy a brand new battery right away. I hope to get another year out of it, maybe more. Will report back again in due time. _____________________________________________________________________________________ I was discouraged by all the crazy looking car battery chargers / maintainers appearing on the market (most from unfamiliar Chinese names), many having suspiciously positive reviews. On top of that, old stalwart US brands like DeWalt, Black & Decker, and Stanley were coming up short of good solid reviews. So I took a chance on this particular "Smart Battery Charger" by ADPOW (short for "Add Power"). 1), the photos on the site do not do the unit justice. The wires are a solid 8 gauge in thickness. The connector setup is intelligently thought-out. The unit has a good heft without being too heavy, and it does not get overtly warm during use. The front panel with LED indicators is clean & tight. 2), the function design of this smart battery charger is perfect for consumer needs. I had been tempted to get a full fledged testing charger with all kinds of analyses possible. After doing enough research, I realized all of that would be lost on someone who is a simple car enthusiast. This charger does all you need it to do -- verify the battery is healthy & charge it up at a reasonable pace. The connector setup allows for the attachment of a special connector which is very handy if you plan on using this charger more than a few times each year. It makes attachment so very easy. Plus the unit has mounting holes so you can affix it to a wall or panel in your garage for convenience. Thirdly, it helped recover my car battery to a more workable state. It is a 3 year old AGM type and it gradually struggled under my infrequent usage of the car since I got it (not using the car for daily commuting, as I used to in the past). When I spent a weekend installing a new car stereo system, using the cabin light for hours and running the stereo for a while without the car running knocked the battery down for the count. It couldn't start the car. I did get a jump start and ran the car for a while, restoring decent voltage. It was working OK. However, I found that the battery was trending towards a resting voltage of 11.9v. At 11.5v it will not have enough power to start, so this was not good. The ADPOW unit cleared my battery as initially OK, started bulk charge, then after about 20 mins switched to absorption charge (meaning a lower steady constant voltage). My multi-meter confirmed the unit was delivering 14.5v, the same you'd get from the car's alternator. After about 4 hours, the charger switched to "Recondition." I had expected this, since the battery had suffered a deep discharge. My multi-meter showed the input voltage from the ADPOW stepped up to 15.5v. At the end of another 4 hours, the "FULLY CHARGED" green indicator lit up. I tested the voltage of the battery and it initially showed 13.6v. After letting it sit for a day, I found the charge was resting at 12.25v. That's not a healthy battery (60%). 12.32v is 70%, 12.42v is 80%, 12.5v is 90%, and 12.7v is 100%. So I ran the charger again. It again went to recondition, but it took half the time. After this, resting voltage showed 12.45v. After driving the car and letting it sit for a day, it showed 12.35v. So my battery is now about 75% of original capacity, but still workable. I'll likely need to replace the battery towards the end of 2020, so the ADPOW charger saved me from having to replace it right away. I'm very happy with the design & performance of this unit. It's small enough to stow in your car's trunk or storage bin. I consider it a worthwhile investment for a reliable battery for its maximum life. By the way, do not skimp on your battery. It's worth spending more to get an AGM type. They are more robust and longer lasting than typical lead acid car batteries.

### ⭐⭐⭐⭐⭐ good clamps and neat battery terminal cleaner brush
*by H***P on October 7, 2019*

I have a dead car battery which I refuse to throw out. It's used for projects just to provide a relatively stable 12v rail. It can't provide the cold cranking amps required to start up my vehicle which is fine. I just bought a new one to replace. It's already been several years and I've had it sitting on a maintenance charger but after measuring the voltage, it has gone down. My little Battery Tender Jr wasn't up to the task of maintaining it anymore. It just couldn't provide enough juice. It would also read as "green" meaning it wasn't under charging mode but rather maintenance mode. So it just provided a float charge. Well, time to get something a bit more powerful. This 5A unit works well. It detected the battery right away and started doing a full charge. I tried the reconditioning function. Hopefully it'll do something but I don't have a heavy load to test on it nor do I have time to run a battery of tests (pun intended). Regardless, I know this battery is shot but I just figure I'll keep it around for miscellaneous projects. My impressions of the charger are good. The fit and finish look fine. No issues there. The clamps look sturdy. The wires seem heavy gauge and it's soldered to the clamps rather than simply crimped on. I like the fact that it's the clamps are housed in plastic. Don't let anyone tell you that's a bad thing. If it was housed in metal I would be afraid of making contact with one of the terminals and then accidentally touching another conductive surface. Anything to a) boost comfort when using the clamps and b) improve safety - is fine by me. I also have this thing about touching a bare metal positive clamp as if the power will surge through me. Go figure. The quick release connectors are also really useful. I want to measure the actual battery voltage without the charger influencing the results. Just use the quick release connectors. I stick my probes in there and voila. My battery and charger are actually awkwardly placed so it's not as convenient to test and use. Having anything to facilitate this is a bonus. Finally the terminal cleaners are a great bonus. I should have gotten something like this years ago. I always see crud built up on the positive terminal. I know it's only a few bucks which shouldn't influence my opinion but what can I say? I'm a simpleton. Throw a piece of candy in there why don't you? Overall, it works as promised. A simple 5A smart charger that I don't have to worry about misusing. My Battery Tender Jr will be relegated to smaller batteries.

### ⭐⭐⭐⭐⭐ Battery charger
*by M***A on September 19, 2025*

Great charger , very reliable. Great price

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-05*