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MilesA

Quick release battery terminal connectors

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In the engine comp  near battery only the nose of the isolator goes through the bulkhead side, terminals covered in engine comp with plastic cap similar to aerosol cap.

Chris

IMG_7957.JPG

Edited by ChrisR-4A

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Thanks Chris,

good idea, and for my LHD car even easier. Will put it on my things to do list.

Regards,

Waldi

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11 hours ago, ChrisR-4A said:

In the engine comp  near battery only the nose of the isolator goes through the bulkhead side, terminals covered in engine comp with plastic cap similar to aerosol cap.

Chris

On balance, I think Chris's solution beats Mr Revington's...just!

Miles

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Yes, it is a real KISS solution, suits me well.

Waldi

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Just to sign off this thread. With the benefit of everyone's input, I decided on a permanent solution rather than constantly detaching (and reattaching) the earth and positive cables from the battery on a regular basis. 

Identified an existing 1" hole in the bulkhead on the N/S, close to the battery. installed a 12v socket with a cover wired directly to the battery clamps for the the earth and positive cables. 

Removed the croc clips from my battery conditioner and wired a fused, cigar type adapter to the wires.

I already have a battery cut off switch installed, so no risk of power leakage when charging.

Job done! 

IMG_E7748.jpg

Edited by MilesA

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Hi Miles,

An additional thought: I note you have your earth connected to the body, not directly to the engine.

On a TR6 the battery earth strap has a double connection: one to the body, the other to the engine. That is a good approach I think. The high current during starting does not depend on an additional connection(body to engine), which I hope you have. 
Cheers,

Waldi

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Hi Waldi

Thanks for the feedback. This is I think the standard arrangement for the battery earth strap on a 3A. I think there is also a strap between engine and body but better experts than me on a 3A will confirm.

Miles

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On the 3A there is an earth braid between the engine and the body by the left hand front engine mount. If that isn't there then return current from the starter motor has to find its way back via various odd paths like the throttle linkage, which isn't a good idea........

 

Edited by RobH

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Rob. No reason to believe it is not present but as part of my ongoing 3A education, I  will check when I am next in the garage.

Miles

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A direct earth strap from battery to engine will help starting - half the number of connections for the current to pass through, so half the resistance.

Pete

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On 11/26/2019 at 5:07 PM, ChrisR-4A said:

Ive had one of these for over 10 years, £12.99 at Halfrauds but probably cheaper elsewhere and can be fitted on LH bulkhead so key is in passenger footwell.

Chris

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Fitted to every boat I've had and is a requirement for pleasure craft

Usually never needed . . . . . .  but . . . . . . . then it's a life saver

 

John

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