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Long Distance Competition/Ultracycling, Randonneuring and Endurance Cycling Do you enjoy centuries, double centuries, brevets, randonnees, and 24-hour time trials? Share ride reports, and exchange training, equipment, and nutrition information specific to long distance cycling. This isn't for tours, this is for endurance events cycling

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Old 01-08-07, 08:58 PM   #1
DanielS
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Lighting Question: Hooking up a Lumotec to a battery pack

Hey all,

I was just wondering if anyone could forsee any difficulties with connecting a Lumotec Oval Plus fork crown mounted headlight to a pack of 4 AA batteries?

The way I see it, its a 6V light, so 4 AAs at 1.5V each should be right? Has anyone done this before or seen it done before?

It would be a temporary measure before getting a wheel built up with a hub generator at a later date.

Thanks.

Daniel
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Old 01-08-07, 11:24 PM   #2
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This is OK as far as I know. I've done this to test Ovalplus lights in the past. Be aware the capacitor that powers the LED will likely sap a little bit out of the battery capacity (but not much, I imagine).

If it had been an E6 then definitely no... the power surge plays absolute havoc with the magnetic reed switch. The Ovalplus switch, if it has one, is straightforward electrical switch.
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Old 01-10-07, 02:46 AM   #3
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Thanks for the advice, Rowan.
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Old 01-10-07, 03:06 AM   #4
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I have wired a Basta 6V/2,4W generator light like this and used it for several months now. I'm using rechargeable AAs with 1,2V nominal voltage, so I have 6 of them. The battery package delivers more than the recommended +20% overvolting when freshly charged, but so far the bulb has taken it OK. The Oval Plus standlight feature shouldn't be a huge issue.

--J
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