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post #1 of 29 Old 01-27-2018, 01:47 AM Thread Starter
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Battery Powered Start Conversion?

Just wondering if there might be a way to convert an AC starter to DC.

I have a friend who put a Harbor Freight 13HP engine on a snow thrower and that engine has a DC starter. So he mounted a battery onto the unit and voila, turn key starting for his snow thrower.

Without having to buy a $360 engine and retrofitting it like he did, is there a simpler way to mount a 12V battery and make it work with the AC starters that are on most of the US made snow throwers out there?

I didn't look too deep, but maybe there is already a thread on the forum about this topic. (Found one that is very old)

When I am doing my snow removal accounts, it would be beneficial to turn a key and go!

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post #2 of 29 Old 01-27-2018, 04:15 AM Thread Starter
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A plan is starting to gel.

It has to do with a 12V lawn tractor battery and a power inverter from Harbor Freight........

Probably should find out how much amperage is needed for the starter on the snow thrower. I would guess, less than 15 amps.

But now, another thought, put an inverter in my truck and just plug an extension cord from the truck to the snow thrower that will be on the trailer right behind it. That would be easier than having another battery to maintain.

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post #3 of 29 Old 01-27-2018, 04:50 AM Thread Starter
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Well, son of a gun, if I didn't just find something...

It never dawned on me to look for a 12V starter for a Tecumseh engine. But dang, Amazon has them and they can be bundled with a push button and a starter solenoid as well.

This might be a fun little project - to make a push button start snow thrower!




Is there an Ari P on this forum? He has some youtube videos were he describes a bit on how he converted his units to battery start.

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post #4 of 29 Old 01-27-2018, 08:02 AM
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Quote:
Originally Posted by Sblg43 View Post
A plan is starting to gel.

It has to do with a 12V lawn tractor battery and a power inverter from Harbor Freight........

Probably should find out how much amperage is needed for the starter on the snow thrower. I would guess, less than 15 amps.

But now, another thought, put an inverter in my truck and just plug an extension cord from the truck to the snow thrower that will be on the trailer right behind it. That would be easier than having another battery to maintain.
================================================== =========


I happen to be in the same church right now, but sitting in a different pew. ----- In my case, I am working with a Kohler k141 engine.


I found and ordered a NOS 12v starter for it yesterday. For power, I am going to just use one of those 3in1 jump starters, like the one that HF sells.

I will make and put a small terminal box on the blower for clipping the jump cables on. For a push button, I plan to just use one of the old starter switches, like the ones used under the gas peddle on many old cars. Not planning on keeping the jump starter on the blower. ---- John
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post #5 of 29 Old 01-27-2018, 08:17 AM
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Originally Posted by Sblg43 View Post
Well, son of a gun, if I didn't just find something...

It never dawned on me to look for a 12V starter for a Tecumseh engine. But dang, Amazon has them and they can be bundled with a push button and a starter solenoid as well.

This might be a fun little project - to make a push button start snow thrower!
Your plan evolved quickly. But yeah, I think buying a 12V DC starter is much more practical than trying to change things about the existing starter motor, or adding an inverter.

The idea of using a jump pack as your power source is interesting. But if the goal is to be able to start it anywhere during use, rather than just for the initial start to begin clearing, I think an onboard battery would be an easier solution during use.

Though you'd want to look into whether your engine has an electrical output that's suitable for charging a starter battery. If not, then yeah, maybe a jump pack is better, since that would already have a means to charge itself.

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post #6 of 29 Old 01-27-2018, 10:16 AM
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12 volt starter is the way to go. There are a few of them running around, mostly Honda, some of the larger Ariens come to mind. I have a stock 1030 Snapper that has a 12 volt system and all the 12v parts are listed in the manual. I like it because I'm getting old and tugging on that cord when it's sub zero just isn't getting any easier.

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post #7 of 29 Old 01-27-2018, 10:57 AM
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Use a 12v batery and starter setup from a similar powered garden tractor or riding mower. An inverter setup would need a huge power capability to handle the 110v AC starter start current. Besides I see a lot of people returning those inverters at HF so don't waste your time on one of those.

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post #8 of 29 Old 01-27-2018, 11:12 AM
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Quote:
Originally Posted by Waterlooboy2hp View Post
================================================== =========
I happen to be in the same church right now, but sitting in a different pew. ----- In my case, I am working with a Kohler k141 engine.

I found and ordered a NOS 12v starter for it yesterday. For power, I am going to just use one of those 3in1 jump starters, like the one that HF sells.

I will make and put a small terminal box on the blower for clipping the jump cables on. For a push button, I plan to just use one of the old starter switches, like the ones used under the gas peddle on many old cars. Not planning on keeping the jump starter on the blower. ---- John
A relay and small switch may be easier to do. It's easier to wire, keep all the heavy wires close to the starter, and just run a couple small wires to the dash using a momentarily on switch. One of those five pin Bosch relays are cheap, plentiful. Del City sells sockets for them to make the install easy. HELLA makes waterproof ones, which is the one I'd look for.

Or a high current horn button for a boat. Something like this:



Or maybe better this, it's sealed, high current switch:

https://alexnld.com/product/waterpro...witch-control/

Last edited by jsup; 01-27-2018 at 11:17 AM.
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post #9 of 29 Old 01-27-2018, 12:00 PM
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[QUOTE=jsup;1471929]A relay and small switch may be easier to do. It's easier to wire, keep all the heavy wires close to the starter, and just run a couple small wires to the dash using a momentarily on switch. One of those five pin Bosch relays are cheap, plentiful. Del City sells sockets for them to make the install easy. HELLA makes waterproof ones, which is the one I'd look for.

================================================== =============


That all sounds good, but I my case, I have a manual compression release on the Kohler engine. I have to be at the engine to operate the release and also the choke. The jump starter connections and the switch will be right on the engine, so no long cables. Kind of like the 110v house current starters, where the button is on top of the engine, or close by. --- John
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post #10 of 29 Old 01-27-2018, 12:15 PM
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[quote=Waterlooboy2hp;1472017]
Quote:
Originally Posted by jsup View Post
A relay and small switch may be easier to do. It's easier to wire, keep all the heavy wires close to the starter, and just run a couple small wires to the dash using a momentarily on switch. One of those five pin Bosch relays are cheap, plentiful. Del City sells sockets for them to make the install easy. HELLA makes waterproof ones, which is the one I'd look for.

================================================== =============


That all sounds good, but I my case, I have a manual compression release on the Kohler engine. I have to be at the engine to operate the release and also the choke. The jump starter connections and the switch will be right on the engine, so no long cables. Kind of like the 110v house current starters, where the button is on top of the engine, or close by. --- John
Manual compression release. That's new to me. What is that?
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