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Post by faffer on Dec 18, 2017 19:38:13 GMT
Hi y`all What size starter battery would best for a mid !980`s 4 stoke 9.9hp outboard be. I may aswell get a new one while i am at wiht the rest as i am getting new pair of main 110ah. Was wondering if a small motor bike would be ok, just to keep it compact. cheers Wayne  All best for xmas and new year |
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Post by naughtyfox on Dec 18, 2017 19:55:21 GMT
 This size battery, you lazy git.  |
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Post by phil70 on Dec 19, 2017 0:55:34 GMT
We had a 21ft cabin cruiser that Chris used for going to work. It had a 105ah battery that also ran the nav lights and spot light. Engine was 7.5 hp two stroke
Phil
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Post by faffer on Dec 19, 2017 3:30:55 GMT
This size battery, you lazy git. Its true i need the excercise, but the deck hand is a little feeble We had a 21ft cabin cruiser that Chris used for going to work. It had a 105ah battery that also ran the nav lights and spot light. Engine was 7.5 hp two stroke Phil BIt much though isnt it for just a starter ? |
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Post by tonyb on Dec 19, 2017 7:37:58 GMT
I am wondering how the OP intends to charge all three batteries. Outboards of that vintage tended to have a very low battery charging output if any at all so unless there is a shoreline involved I would expect problems with 2 x 110 Ah batteries plus a start battery.
I think I would keep it simple and just use the 2 x 110 Ah batteries for starting and if you did flatten them 9.9hp is fairly easy to start by the string as per Naughtyfox
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Post by phil70 on Dec 19, 2017 7:57:56 GMT
This size battery, you lazy git. Its true i need the excercise, but the deck hand is a little feeble We had a 21ft cabin cruiser that Chris used for going to work. It had a 105ah battery that also ran the nav lights and spot light. Engine was 7.5 hp two stroke Phil BIt much though isnt it for just a starter ? It came with the boat and as I said also ran the nav lights and spotlight, Chris often had to travel at night so on a tidal river good lights were needed. Phil |
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Post by JohnV on Dec 19, 2017 7:58:17 GMT
^^^^ this ........ on Pippin, my Shetland I had a 110Ah battery for a 40Hp 2stroke (plus nav lights,GPS,VHF etc) but if I did have trouble I could (just) start it with the pull cord (of course I was only in my youthful sixties then)  |
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Post by peterboat on Dec 19, 2017 9:50:37 GMT
Maybe he is putting in solar for the leisure batteries because six amps isnt going be happy split 2 ways!!!!
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Post by faffer on Dec 19, 2017 19:42:40 GMT
Yep easy enough to use the two 110Ah for the starter which i may do. Or the pull start, thing with the pll start is the engine bay surround is high around the engine, i need to see if it will bother the pull start yet.
For those asking how i will charge the batteries, i will be using mains power or a genny. Cant see the poi tin solar from what folk say about it. Engine charging as folk now is useless
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Post by peterboat on Dec 20, 2017 0:38:56 GMT
Yep easy enough to use the two 110Ah for the starter which i may do. Or the pull start, thing with the pll start is the engine bay surround is high around the engine, i need to see if it will bother the pull start yet. For those asking how i will charge the batteries, i will be using mains power or a genny. Cant see the poi tin solar from what folk say about it. Engine charging as folk now is useless Solar works ask JohnV or myself it keeps batteries alive far longer than without |
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Post by faffer on Dec 20, 2017 3:46:49 GMT
Yep easy enough to use the two 110Ah for the starter which i may do. Or the pull start, thing with the pll start is the engine bay surround is high around the engine, i need to see if it will bother the pull start yet. For those asking how i will charge the batteries, i will be using mains power or a genny. Cant see the poi tin solar from what folk say about it. Engine charging as folk now is useless Solar works ask JohnV or myself it keeps batteries alive far longer than without Its the size for me and what i need, i was told it would not be worth it due to they hardly charge in winter or cloudy days, not even 50% of there stated rate. If only the isze that i can fit on the boat would just keep them trickle charged. Cant remember off the top of my head the size i can get but i think it was around the 200w size. area of 110cm x 120cm i think. |
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Post by peterboat on Dec 20, 2017 9:16:01 GMT
Its worth it just for the ability to go away for a couple of weeks and still have some power. I have discovered Ladies like that sort of thing honest. Also in the winter it keeps the batteries topped up and protected
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Post by faffer on Dec 21, 2017 3:40:41 GMT
Its worth it just for the ability to go away for a couple of weeks and still have some power. I have discovered Ladies like that sort of thing honest. Also in the winter it keeps the batteries topped up and protected Oh yes T would like real power for the driter and straighteners...women hey I may get solar at a later date, just not yet as its not the best for getting power from what space i have. A genny is best IMO for what i need. Looking at a Honda EU10i. Good small units i believe. |
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Post by Deleted on Feb 2, 2018 15:51:27 GMT
Just seen this. I used to use any battery that was going begging off a scrap car. The starter motor is about the same size as a motorbike starter and takes bugger all juice. Wire it in to one of your batteries and away you go. If the electric leg is dead you've always the option of the emergency start rope on the top of the flywheel |
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Post by faffer on Feb 2, 2018 19:04:38 GMT
Just seen this. I used to use any battery that was going begging off a scrap car. The starter motor is about the same size as a motorbike starter and takes bugger all juice. Wire it in to one of your batteries and away you go. If the electric leg is dead you've always the option of the emergency start rope on the top of the flywheel Hi kida, i decided to just wire ot up to the battery bank and see how it goes. If need be and safer then i wilte a bike battery and try that. |
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