Find Anything, Fast!

Need Support or Have a Question?

Click Here
  • Home
  • Rockwood Battery Maintainer
Rockwood Battery Maintainer is rated 4.7 out of 5 by 22.
Rated 5 out of 5 by from Great Battery Maintainer Price was better than the last two maintainers I bought. Works fine I like the long cord. was a little alarmed when the green LED flashed all day on my Dodge pickup, but seemed to work fine on the 4 wheeler.
Date published: 2016-05-20
Rated 5 out of 5 by from Great product for any 12 V batteries I have very good luck with these maintainers. They work on my motorcycles, Lawnmowers, and Wave Runner. (Lasts longer than the HD maintainers I have bought for my bikes)
Date published: 2016-05-19
Rated 5 out of 5 by from Rockwood Battery Maintainer Good value, fast delivery and good service thanks
Date published: 2016-05-19
  • y_2018, m_6, d_21, h_23
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_22
  • loc_en_US, sid_30550, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_eastwood

When the battery has come up to a full charge, does the microprocessor switch over to a pulsating 'desulfating' circuit or does your charger/maintainer simply lower the rate of charge output to prevent boil over?

Asked by: Bman
When in Maintenance Mode : The Charger/Maintainer will automatically shut off at full battery charge and go into a Storage/Float mode with automatic On-Off monitoring. If the battery voltage falls below 12.8 volts, the Charger will re-activate and start the Charging Mode.
Answered by: S Church
Date published: 2017-12-07

Will this charger work on an AGM battery like an Optima?  Thanks

Asked by: K Fish
Use the Battery Charger/Maintainer for charging and maintaining 12-volt regular, deep-cycle, sealed Lead-Acid, Gel-cell and AGM (absorbed glass mat) batteries only
Answered by: S Church
Date published: 2018-01-26

How long is the battery charging lead? How long are the "pigtail" leads?

Asked by: jwm1941
Both the charging lead and the pig tails are 2 feet long
Answered by: SeanA
Date published: 2017-05-08

I would like to now the country where the charger was made in.

Asked by: bb 65
The charger is made in China
Answered by: SeanA
Date published: 2017-10-01
  • y_2018, m_6, d_21, h_23CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_4
  • loc_en_US, sid_30550, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_eastwood

Rockwood Battery Maintainer

Rockwood Battery Maintainer

Item #30550

Rockwood Battery Maintainer
Quantity: close

In stock

Only $24.99

Sale $19.97

< Back


The Rockwood Battery Charger/Maintainer is equipped with a fully automatic microprocessor control unit to safely keep your 12 volt automotive, marine, motorcycle, lawn equipment and power-sports batteries at their peak power and efficiency.

  • 12 Volt DC, 0.8 Amp (800 ma) output capacity
  • Automatic input power, charging, & fully charged LED display
  • Automatic switching; charge/maintain/charge microprocessor circuitry
  • Connect to side-or top-mount battery terminals
  • Ideal for maintaining and charging during storage
  • Input power requirements = 120 V AC, 60 Hz., 0.25 Amp

Features reverse polarity, short-circuit, and overload protection. The four-function LED display is easy to read. The Charger/Maintainer is excellent for maintaining a battery at full charge even through seasonal storage.

More info...
< Back

About Rockwood Battery Maintainer

This is a 0.8 amp battery maintainer that can be used on any 12 volt lead acid battery. Use this tool to keep all of your 12 volt batteries in top shape as they are stored for long periods of time.


Contains One Charger Assembly with 2 charging pigtails.


Click here for product instructions


Always wear proper safety equipment when working with automotive batteries. There are safety concerns requarding explosive materials, electrical shock and possible acids burns.


Made in China, 1 year Warranty

< Back

Customer Reviews

< Back

Questions & Answers

Customers also viewed: