Tyla 3,179 Posted March 10, 2009 Report Share Posted March 10, 2009 i've been using a lazerlite with a 12v 7ah battery but i have just been given a 12v 17ah battery. Can i use the same charger or do i need a different one? if so wheres the best place to get it from? Thanks Quote Link to post
BEARINATOR 2,916 Posted March 10, 2009 Report Share Posted March 10, 2009 You can use the same charger on it but if your charger only puts out 7 amps it will take longer to charge. I use my dads car battery charger, it's a heavy duty job but it sharp charges batteries up Quote Link to post
hunter cammo 0 Posted March 11, 2009 Report Share Posted March 11, 2009 is it safe to use a car bat charger ? Quote Link to post
chartpolski 27,784 Posted March 11, 2009 Report Share Posted March 11, 2009 is it safe to use a car bat charger ? I wouldn't use a car charger on a sealed gel batery, they will work, but the battery life is shorteneed; better to get a compatable charger. Cheers. Quote Link to post
Tyla 3,179 Posted March 11, 2009 Author Report Share Posted March 11, 2009 i've been using a lazerlite with a 12v 7ah battery but i have just been given a 12v 17ah battery. Can i use the same charger or do i need a different one? if so wheres the best place to get it from? Thanks your charger for the 7 would be a 500 you will need an 800 for the 17ah arthur carter online usualy next day delivery and an after sales service unrivalled in my opinion The charger i have that came with the 7ah set up is a 800mA, just been looking a bit online and they sell 1500mA for 12-18ah batteries. Will it damage either lamp or charger if i use the 800mA or will it just take a long time to charge? Thanks Quote Link to post
BEARINATOR 2,916 Posted March 11, 2009 Report Share Posted March 11, 2009 It won't damage either, i think it would charge in about the same time Quote Link to post
webby 31 Posted March 11, 2009 Report Share Posted March 11, 2009 ive used a car batt charger on the same 17 amp battery for about 3 years and i can go lamping for about 4-5 hours and thats using a blitz 240 Quote Link to post
Tyla 3,179 Posted March 11, 2009 Author Report Share Posted March 11, 2009 Nice one BRL thats exactly what i wanted to hear! Saves having 2 chargers lying about! Quote Link to post
Strong Stuff 2,171 Posted March 11, 2009 Report Share Posted March 11, 2009 Divide the battery capacity by the charge rate to get your charge time ............... 17 A/h battery charged @ 500 mA/h will take 34 hours to fully charge 17 A/h battery charged @ 800 mA/h will take 21 hours to fully charge Buy a Lithium pack! Quote Link to post
Guest joe ox Posted March 11, 2009 Report Share Posted March 11, 2009 (edited) I use a car battery charger if Iam in a hurry, it charges the battery in about 3 hours on slow and 1 and half hours on quick. I also have a battery charger which I bought from a model shop for £10 which takes around a day and a half to fully charge a 20ah. Both chargers have a fully charged indicator. Although both chargers indicate when the batterys are fully charged the model charger seems to put slightly more charge in.The model charger is a plug adaptor so takes very little space and for the price there worth having lay about. Edited March 11, 2009 by joe ox Quote Link to post
matty73 4 Posted March 11, 2009 Report Share Posted March 11, 2009 the best explanation i can give is the difference between chargers is like trying to fill a cup with water if the tap is on full yes it fills quicker but not fully as you only get 3/4 of a cup before it goes everywhere no matter how long you leave it you still only get 3/4 of a cup where with slow running tap just like trickle charger it takes longer but it fills to the brim hope this makes sense Quote Link to post
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