Readi Amp8 Battery Charger - SailNet Community

   Search Sailnet:

 forums  store  

Quick Menu
Boat Reviews  
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Hatches and Portlights
Interior And Galley
Marine Electronics
Other Items
Plumbing and Pumps
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here

Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
Old 05-09-2010
sailjunkie's Avatar
Mirage 29
Join Date: Nov 2009
Location: Port Moody, BC
Posts: 307
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 6
sailjunkie is on a distinguished road
Readi Amp8 Battery Charger

Our boat comes with a Readi-Amp 8 Battery Charger made by Professional Mariner (now Pro Mariner?). We're not running across any problems, but having recently purchased the boat, we are trying to learn as much as possible about her systems.

My research suggests:
  • This particular model is no longer in production.
  • This particular model may have a reputation as a "battery killer". A couple of power boat forums indicate this.
I'm just wondering if anyone here has had any experience, good or bad, with this charger? As long as it continues working, there is no need for immediate action. However, I will be taking a closer look at the entire electrical system, either next year or the year after, and a new charger might be appropriate then.

Thanks in advance for your help.

S/V Avatar
Mirage 29'
Port Moody, BC

It's not my fault they named a movie after our boat
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
Old 05-10-2010
SoulVoyage's Avatar
seeker of wonder
Join Date: May 2010
Location: Where the oceans have no address.
Posts: 84
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 5
SoulVoyage is on a distinguished road
I don't think battery chargers, per se, are battery killers...I think PEOPLE are battery killers. By that I mean that leaving a boat constantly on shorepower when it doesn't always need to be, is eventual death to a battery. A charger will only do so much, YOU (not you, but John Q. Public) have to take responsibility for maintaining your batt.

If you leave the boat for a week or two or three....unplug your shorepower. I unplug mine and take the cord right off the boat, as I am often concerned about lightning striking nearby and traveling through the cord and wreaking havoc on the boat's electrical system...I am sure this is unfounded, but nonetheless.

If you have a flooded battery (your standard lead-acid type)...check your electrolyte level often often, and take a Specific Gravity reading every now and then to confirm that it correlates with what your battery state meter says.

Just as your batt charger puts energy into your battery, YOU have to put energy into your battery maintenance schedule. I see too many people simply plug their shorepower in and head for the hills...and then wonder why their batteries are only lasting 18 months.
"...and a star to steer her by."
Reply With Quote Quick reply to this message Share with Facebook
Old 05-10-2010
mitiempo's Avatar
Senior Member
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,411
Thanks: 0
Thanked 88 Times in 79 Posts
Rep Power: 8
mitiempo will become famous soon enough mitiempo will become famous soon enough
I disagree. A good 3 stage charger is designed to be left on 24/7. The Xantrex Truecharge chargers, one of which I just installed, have an automatic equalization that requires constant power. They will do no damage to your batteries. When I checked on the install the batteries were fully charged and the Xantrex was putting less than an amp into a 225 AH bank. This was easy to see with the Link battery monitor I also installed. This will not kill a battery with the proper fluid levels. A cheap 1 stage ferro resonant charger should not be on the boat.
Living aboard in Victoria Harbour
Reply With Quote Quick reply to this message Share with Facebook

Quick Reply

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Reconditioned Batteries dryclean Gear & Maintenance 10 03-18-2010 08:28 AM
Battery Bank Design Kevin Jeffrey Gear and Maintenance Articles 0 05-12-2003 08:00 PM
Battery Bank Design Kevin Jeffrey Cruising Articles 0 05-12-2003 08:00 PM
Installing a New Battery Bank Sue & Larry Gear and Maintenance Articles 0 09-26-2002 08:00 PM
Boat Battery Power East Penn Manufr. Gear and Maintenance Articles 0 01-18-1999 07:00 PM

All times are GMT -4. The time now is 02:56 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) LLC 2000-2012

The store is owned and operated by a company independent of the forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.