---
product_id: 94079371
title: "Trickle Charger 12V - Automatic Battery Maintainer Tender Desulfator | 5 Stage Smart Conditioner for Perfect Battery Charging & Maintenance Great for Motorcycle Jetski etc. by KeyLine Chargers USA"
brand: "keyline chargers"
price: "¥2075"
currency: JPY
in_stock: false
reviews_count: 5
url: https://www.desertcart.jp/products/94079371-trickle-charger-12v-automatic-battery-maintainer-tender-desulfator-5-stage
store_origin: JP
region: Japan
---

# Trickle Charger 12V - Automatic Battery Maintainer Tender Desulfator | 5 Stage Smart Conditioner for Perfect Battery Charging & Maintenance Great for Motorcycle Jetski etc. by KeyLine Chargers USA

**Brand:** keyline chargers
**Price:** ¥2075
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Trickle Charger 12V - Automatic Battery Maintainer Tender Desulfator | 5 Stage Smart Conditioner for Perfect Battery Charging & Maintenance Great for Motorcycle Jetski etc. by KeyLine Chargers USA by keyline chargers
- **How much does it cost?** ¥2075 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/94079371-trickle-charger-12v-automatic-battery-maintainer-tender-desulfator-5-stage)

## Best For

- keyline chargers enthusiasts

## Why This Product

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

## Description

Full description not available

## Images

![Trickle Charger 12V - Automatic Battery Maintainer Tender Desulfator | 5 Stage Smart Conditioner for Perfect Battery Charging & Maintenance Great for Motorcycle Jetski etc. by KeyLine Chargers USA - Image 1](https://m.media-amazon.com/images/I/816G+gs+4dL.jpg)
![Trickle Charger 12V - Automatic Battery Maintainer Tender Desulfator | 5 Stage Smart Conditioner for Perfect Battery Charging & Maintenance Great for Motorcycle Jetski etc. by KeyLine Chargers USA - Image 2](https://m.media-amazon.com/images/I/81-4qZHHovL.jpg)
![Trickle Charger 12V - Automatic Battery Maintainer Tender Desulfator | 5 Stage Smart Conditioner for Perfect Battery Charging & Maintenance Great for Motorcycle Jetski etc. by KeyLine Chargers USA - Image 3](https://m.media-amazon.com/images/I/815BWwyb7fL.jpg)
![Trickle Charger 12V - Automatic Battery Maintainer Tender Desulfator | 5 Stage Smart Conditioner for Perfect Battery Charging & Maintenance Great for Motorcycle Jetski etc. by KeyLine Chargers USA - Image 4](https://m.media-amazon.com/images/I/61r-F1vd-6L.jpg)
![Trickle Charger 12V - Automatic Battery Maintainer Tender Desulfator | 5 Stage Smart Conditioner for Perfect Battery Charging & Maintenance Great for Motorcycle Jetski etc. by KeyLine Chargers USA - Image 5](https://m.media-amazon.com/images/I/71iJNbqRauL.jpg)

## Customer Reviews

### ⭐⭐⭐ 







  
  
    Great while it lasted
  

*by P***P on Reviewed in the United States on June 6, 2019*

This thing is great .. while it lasts.  I've gone through two of them now.  The unit is *really* effective at reviving sulfated batteries.  I had a car that didn't have a bell when you left the headlights on, so we were always leaving them on and draining the battery.  It got the point where it would barely hold a charge.  I used this unit and it brought the battery back to life.  It was like brand new again.The only problem is that the unit died within a month.  I figured I'd give it another try since the results were so good and maybe I just got a bad unit.  But the next one died on the first use.  I'm not sure what's up with these units, but it's really disappointing since it worked so well while it worked.

### ⭐⭐⭐⭐⭐ 







  
  
    I think it recovered a likely sulphated battery
  

*by D***N on Reviewed in the United States on June 26, 2019*

I put it on a lawn tractor battery at least 3 years old.  The battery was dead from the winter when I got it.  I put this charger on it, and the battery now will keep charge for at least a few days w/o being connected.  (Seems to turn over as well after a few days as when freshly off the charger.)The only thing I wish is that the indication of what is going on was better.  When first connected, it does a flashing light thing.  You "can tell" what is going on by the duration of the light flashes.  Maybe it is just me, but I am not good at telling 0.2 second long flashes vs 0.5 second long flashes.It would IMO be FAR better if it say flashed 3 times and then paused, flashed three times and paused, lather, rinse, repeat indicating one condition, and 2 flashes then pause, two flashes and pause, lather, rinse, repeat to indicate what it was doing when first connected, and the shore power connected.That brings up an irk.  You have it with two lights indicating "floating" and then disconnect it from the battery so that the tractor can be used.  Then return and it still has two lights.  Reconnect it and it still has two lights.  Did it enter charge mode for a short bit as other automatic chargers do?  No clue cause there is no change.  (I have two other automatic chargers.  They give me some slight indication that "I am reconnected.")  IF you disconnect the 120V shore power and reconnect the 120V power, THEN it goes into the "somewhat informative" (Is it 0.2 or 0.5 second?  Who knows, not me) flashing lights for a bit.But it does seem to work on reducing battery sulfation, and keeps the battery charged and floating.  :):)

### ⭐⭐⭐⭐ 







  
  
    Nice maintenance charger
  

*by W***N on Reviewed in the United States on February 14, 2019*

Have a car which is rarely used and battery tends to run down over time from various usages in the car.When I received this I applied it to the battery of this car with a very weak battery due to non-use of car.  This is the same one I will use it on for maintenance.  Used clips and as such did not want to close the hood fully as that may affect clip placement  As such, I just ran it during the daytime and after about 3 days of running battery was fully charged.Just finished attaching the other cable to some bolts on the battery post so that the battery area lid could be secured and the lid put back on and the hood could be safely closed.Only time will tell about its ability to safely maintain the battery.  That is the only concern causing a 4 versus 5 star rating.Also could use one of the extension cords so that the wires from the unit would not be a trip hazard and I could leave all connected.  However, Amazon shows out of stock for these items.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-11*