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30 August 2021, 08:43
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#1
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Member
Country: UK - England
Town: Bradford
Join Date: Jun 2021
Posts: 113
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Does running the outboard recharge the battery?
Hi all,
(New to us) boat has been in storage for about 6 weeks -, when I take it out this weekend, I'm curious to know if the outboard will recharge the boats battery?
It's a 30hp tohatsu if that helps!
Thanks
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30 August 2021, 09:14
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#2
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Member
Country: UK - Wales
Town: Pembroke
Boat name: Rapscallion
Make: Humber Destroyer 6.0
Length: 5m +
Engine: E-TEC 150
Join Date: Jul 2006
Posts: 360
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Electric start or pull start?
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30 August 2021, 10:00
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#3
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Member
Country: UK - England
Town: Bradford
Join Date: Jun 2021
Posts: 113
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Quote:
Originally Posted by Jon Tallis
Electric start or pull start?
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Oh sorry Jon!
Electric start.....
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30 August 2021, 10:05
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#4
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RIBnet admin team
Country: UK - England
Town: Cambridgeshire
Boat name: Nimrod II
Make: Aerotec 380
Length: 3m +
Engine: Yam 15 Tohatsu 9.8
Join Date: Nov 2007
Posts: 8,928
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If you have one I'd pop a voltmeter on the battery as soon as you have the motor running on the water... just for the reassurance it does charge.
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30 August 2021, 10:20
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#5
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Member
Country: UK - England
Town: Bradford
Join Date: Jun 2021
Posts: 113
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Quote:
Originally Posted by Fenlander
If you have one I'd pop a voltmeter on the battery as soon as you have the motor running on the water... just for the reassurance it does charge.
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Thats a great idea Fenlander, thanks - I have a multimeter so i could check the battery before we start the engine, then check it again afterwards - if it's higher V, it's charging?
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30 August 2021, 10:41
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#6
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Member
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 5m +
Engine: DF140a
MMSI: 235111389
Join Date: Feb 2008
Posts: 12,167
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Quote:
Originally Posted by citygent111
Thats a great idea Fenlander, thanks - I have a multimeter so i could check the battery before we start the engine, then check it again afterwards - if it's higher V, it's charging?
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Leave the meter on whilst the engine is running, you should be able to see the voltage increase slightly as the revs increase. You should be seeing around 14.5V with the engine running.
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Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
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30 August 2021, 11:30
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#7
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Member
Country: UK - Wales
Town: Pembroke
Boat name: Rapscallion
Make: Humber Destroyer 6.0
Length: 5m +
Engine: E-TEC 150
Join Date: Jul 2006
Posts: 360
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If it's electric start then it should be designed to recharge the battery but follow the advice of the previous two responders to confirm if it actually is charging.
And familiarise yourself with the emergency manual start - it ought to have one. Pull cord was probably with the original manual & info pack
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30 August 2021, 19:31
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#8
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RIBnet admin team
Country: UK - England
Town: The wilds of Wiltshire
Boat name: Dominator
Make: SR5.4
Length: 7m +
Engine: Yam 85
MMSI: 235055163
Join Date: Jul 2005
Posts: 13,069
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Quote:
Originally Posted by citygent111
Oh sorry Jon!
Electric start.....
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Should do, unless it's an ancient (80s or before) one converted to electric start.
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31 August 2021, 11:55
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#9
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Member
Country: UK - England
Town: Farnborough
Boat name: Narcissus
Make: Cobra
Length: 7m +
Engine: Optimax 225
Join Date: Jul 2003
Posts: 2,364
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Pretty much this. Modern EFI with electric start usually has a proper alternator, so will charge it OK. Old stuff especially just had an extra winding on the stator and often only had a rectifier on it, not even a regulator. The output capacity was low enough that it didn't matter.
Quote:
Originally Posted by Nos4r2
Should do, unless it's an ancient (80s or before) one converted to electric start.
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31 August 2021, 12:28
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#10
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Member
Country: UK - England
Town: Bradford
Join Date: Jun 2021
Posts: 113
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Quote:
Originally Posted by Nos4r2
Should do, unless it's an ancient (80s or before) one converted to electric start.
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No it's almost brand new (bought new May 21) so I imagine it will - I'll still do the multimeter check though.
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31 August 2021, 15:11
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#11
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Member
Country: UK - England
Town: Retford
Boat name: Spy-sea-one
Make: Excel 435
Length: 4m +
Engine: Suzuki Outboard/25/4
Join Date: Oct 2011
Posts: 7,529
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