thomasbeaton Posted December 16, 2013 Report Share Posted December 16, 2013 Hi guys. I have list my battery for my lamp, it was a 12v 12ah and was great with my 100w lamp. My question is will there be much difference if I buy one or two new ones with a lower ah? Cheers. T. Quote Link to comment Share on other sites More sharing options...
NIGHT SEARCHER Posted December 16, 2013 Report Share Posted December 16, 2013 (edited) I use 12v 7ah on my 100w lamp I get them from Tool Station £15 free p&p. I do shot from the car a lot so i use the cig lighter in the 4x4 with the engine running it`s a lot brighter. If you google it there`s a chart that will tell you how long a 12v 7ah will last with 100watts pulling out of it. I worked it out when i was using a 55w lamp and it was 12v 7ah at 55w pulling out of it = 4 hours. I bet the 12ah battery was an heavy sod i walk about with. Edited December 16, 2013 by NIGHT SEARCHER Quote Link to comment Share on other sites More sharing options...
thomasbeaton Posted December 16, 2013 Author Report Share Posted December 16, 2013 That's great bud cheers. It does get fair hevy after a couple of hours lol Quote Link to comment Share on other sites More sharing options...
Dekers Posted December 16, 2013 Report Share Posted December 16, 2013 Hi guys. I have list my battery for my lamp, it was a 12v 12ah and was great with my 100w lamp. My question is will there be much difference if I buy one or two new ones with a lower ah? Cheers. T. I'm not following that, forgetting any specific individual efficiency the battery life will be measured in AH against the draw, therefore if you get a 7 or 9ah battery it will last proportionally less time against the same draw. I don't believe there are 6ah available, (I may be wrong) but if you got for example 2 x 7ah they should last that bit longer, in total! Quote Link to comment Share on other sites More sharing options...
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