Reply
 
Thread Tools Search this Thread
 
Old 13 December 2010, 12:27   #1
Member
 
chrishowden's Avatar
 
Country: UK - Scotland
Town: Edinburgh
Make: XS Ribs
Length: 5m +
Engine: Mercury 90 Optimax
Join Date: Dec 2009
Posts: 194
Trickle Charger

How long should it take to charge a leisure battery for my boat? Any advice
__________________

__________________
chrishowden is offline   Reply With Quote
Old 13 December 2010, 12:51   #2
RIBnet supporter
 
C2 RIBS's Avatar
 
Country: UK - England
Town: Hants
Boat name: Gemineye
Make: Ribeye S850 charter
Length: 8m +
Engine: 300hp
MMSI: 235097445
Join Date: Sep 2007
Posts: 3,029
Quote:
Originally Posted by chrishowden View Post
How long should it take to charge a leisure battery for my boat? Any advice
I use one of these http://cgi.ebay.co.uk/CTEK-XS800-SMA...item4155024b6d

I have numerous batteries on boats and cars and this has been marvellous.

I thought I had killed a boat battery but it took four days on this unit and came back to life and has been good since. The other day I did another boat battery and it was fully recharged within 15hrs.
__________________
Ian
Rib charter and Rib hire with www.c2ribs.co.uk
C2 RIBS is offline   Reply With Quote
Old 13 December 2010, 12:53   #3
Member
 
Country: UK - England
Town: bedford
Make: tornado
Length: 5m +
Engine: outboard 60hp merc
Join Date: Oct 2007
Posts: 210
Quote:
Originally Posted by chrishowden View Post
How long should it take to charge a leisure battery for my boat? Any advice
It just depends how low the battery is, I have a smart charger and every now and again connect it up and leave it overnight. Its always on the maintain light when I next look.

Dave
__________________
davej is offline   Reply With Quote
Old 13 December 2010, 15:28   #4
Member
 
m chappelow's Avatar
 
Country: UK - England
Town: yorkshire
Boat name: little vicky
Make: avon ex RNLI
Length: 3m +
Engine: tohatsu
Join Date: Mar 2008
Posts: 2,310
Have a look on the battery and it should say how many amps it holds ,then look at the battery charger and it should say how many Amp hours it gives out .

some thing like,, Battery 12volt 20 Amp hours .

Charger 12 volt 5 amp hours

in theory battery should take 4 hours to charge up .

or if it was a 40 amp hour battery it would take 8 hours to charge at 5 amps

thats what we have always gone by .
__________________
m chappelow is offline   Reply With Quote
Old 13 December 2010, 15:35   #5
RIBnet supporter
 
Erin's Avatar
 
Country: UK - Channel Islands
Town: A large rock
Boat name: La Frette
Make: Osprey Vipermax
Length: 6m +
Engine: 200 Suzzy
Join Date: May 2004
Posts: 2,830
Battery charging is quite a complex issue. Sadly it is not as simple as dividing the capacity of the battery by the charger output for the simple reason that as the battery charges, its internal resistance will change and the charging current will reduce as the voltage rises.

Depending upon the 'trickle' charger output, some batteries may never get to fully charged. Smart chargers usually ramp up the charge current at the start and then drop down to a bulk charge level before moving to a lower rate to get the final bit in. On a big battery, a trickle charger may do nothing more than maintain a float voltage which will prevent self discharge but not actually do any proper charging.
Erin is offline   Reply With Quote
Old 14 December 2010, 15:53   #6
Member
 
spartacus's Avatar
 
Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 60hp + aux
MMSI: 235087213
Join Date: Jun 2007
Posts: 3,268
RIBase
Worth checking the battery (unless it's maintenance free), that's there's sufficient electrolyte solution to cover the cells/plates. If it needs topping up, then used distilled water (available from local autoparts store, or Halfrauds!) Makes the difference between a battery retaining the charge or becoming exhausted.
__________________

__________________
spartacus is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 14:12.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.