Guest david1976 Posted October 25, 2008 Report Share Posted October 25, 2008 Here is a wee light question i'd appreciate your help with. I am going to get myself a lamp for the foxes on my permission and having seen the cost of battery packs i am going to buy and make my own. Planning on probably a clulite lamp as i have heard that wiring can be an issue with some other varieties. 1. What are the lamping hours i would get from a 12v 7amp, 12v 10amp or 12v 17amp battery 2. Can anyone show me a diagram for linking the batteries together so i know what to buy to complete the set up cheers David Quote Link to post
Guest JohnGalway Posted October 25, 2008 Report Share Posted October 25, 2008 David, you can buy a sealed lead acid rechargeable battery almost anywhere from places like motorbike shops to Ebay All you need then is a charger, I would get a Deben 800ma one. Can't remember whether this was with a 75W or 100W bulb, but I would get two full hours of good light and 30 minutes of downhill quality light out of an 18amp battery. Going on what I've read over the past three years, Lightforce, complete with it's shit wiring, will give you the best beam of any comparible lamp out there. You can only shoot what you can see, and from my own opinion if I was running say a 100W bulb I'd want it in the best reflector so I could maximise it's ability. Just my opinion going on what I've experienced and read mind you. Quote Link to post
Deker 3,491 Posted October 25, 2008 Report Share Posted October 25, 2008 Divide the Watts (Lamp Power) by the Volts, (12) this will give you amps....if the battery is 7 amps divide by the system amp draw to find battery life...... Example 30 watts lamp, divided by 12 volts = 2.5 amps draw So a 7 amp battery divided by 2.5 amp draw should last nearly 3 hours 10 amp battery 4 hours 17 amp battery nearly 7 hours These are the MAXIMUM times you would expect under ideal conditions with PERFECT equipment..you will NEVER achieve this, so always expect a bit less all round!!! Wiring wise, you can buy 7, 9 and 10 amp 12v batteries so no need for anything clever on the wiring side....if you want a "battery pack" you can buy 6v and 12v batteries and wire them up parallel or series to achieve almost any power you want (or can carry)! Probably not explained all that well but hope you can understand!! Quote Link to post
Guest david1976 Posted October 26, 2008 Report Share Posted October 26, 2008 cheers guys, any recommendations for places to get the cheap batteries? Quote Link to post
Deker 3,491 Posted October 26, 2008 Report Share Posted October 26, 2008 cheers guys, any recommendations for places to get the cheap batteries? I suspect you better let your fingers do some walking around the web... This is my man but probably not much help to you... Batteryman 45 Watmore Lane Winnersh Wokingham RG41 5JS Berkshire Tel: 01189 788410 Fax: 0118 9788410 Quote Link to post
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