About Us

On 2 Jul 2004 05:58:53 -0700, (Steve Austin)
wrote:

Can anyone help please. My boat has a 1 year old deep-cycle battery
which my 5hp Mariner outboard doesn't seem to charge any more. On
tickover it engine shows 6V and at high revs shows aound 10-11V. My
local outboard repair shop changed the rectifier and charged me £90,
but this hasn't made any difference - they say the output voltage is
not relevant, only the current - which shows 5A.

I thought the output voltage would need to be around 14V to charge the
battery. Is the regulator at fault ? Any thoughts appreciated thanks.

Current and voltage are related - if the charger can only supply 5
amps, and the battery is _really_ dead, so it could take, say, 20 amps
at 14 volts, the charger will reduce its output voltage to the point
that the battery only wants 5 amps.

Do you see this 6 - 11 volts with or without the battery connected?
If it is with the battery connected, then the battery is _really_
fatally dead, and should be replaced.

Lead-acid batteries will self-discharge over time, and if left
discharged will become permanently damaged, and will no longer hold a
useful charge. If you are not using the boat (and therefore charging
the battery) regularly, you should charge the battery once a month or
so to maintain it in good ocndition.

--
Peter Bennett VE7CEI
email: peterbb4 (at) interchange.ubc.ca
GPS and NMEA info and programs: http://vancouver-webpages.com/peter/index.html
Newsgroup new user info: http://vancouver-webpages.com/nnq

Thread Tools	Search this Thread
Show Printable Version	Search this Thread: Advanced Search
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Outboard Overcharging... (long)	CCred68046	General	23	June 12th 04 04:11 PM
Deep cycle batteries - miscellaneous advice?	Ric	Electronics	15	December 29th 03 10:20 AM
charging deep cycle trolling battery with truck	[email protected]	General	4	November 22nd 03 07:28 AM
charging a battery on a houseboat	james	Electronics	2	September 29th 03 10:32 PM
Experts, please review my isolator install.....	JAD	Electronics	5	July 25th 03 04:20 PM

Menu

About Us