maclean156 0 Posted September 26, 2008 Report Share Posted September 26, 2008 Hi guys, I have the above lamp with the 12 volt 7 amp battery, how long does it take to fully charge froma run down state? The reason I am asking is that in the instructions it say plug the battery into charger, the green light on it should start to dim and eventually go out when battery is fully charged but its now been 12 hours and shows no sign of the green light dimming, any help would be appreciative...thanks ps......I have got the charger set to 12 volt by the way and the charger has an output of 500 ma Quote Link to post
Deker 3,491 Posted September 27, 2008 Report Share Posted September 27, 2008 Hi guys, I have the above lamp with the 12 volt 7 amp battery, how long does it take to fully charge froma run down state? The reason I am asking is that in the instructions it say plug the battery into charger, the green light on it should start to dim and eventually go out when battery is fully charged but its now been 12 hours and shows no sign of the green light dimming, any help would be appreciative...thanks ps......I have got the charger set to 12 volt by the way and the charger has an output of 500 ma The strict maths of your situation says it will take 14 hours to fully charge a completely flat battery...but life isn't that simple, depends on the quality of the charger, and your 12v battery will deliver more than 12v when it is new (commonly 13.5-14v), and hold a charge better when it is new (actually after a few charge/discharge cycles). It is suggested you continue to charge for approx 20% longer ..after the green light goes out....but do not go overboard!! A very unscientific way to check when the battery it is well charged, is when the charger itself begins to cool down...not perhaps the best test in the world!! Quote Link to post
kristian 9 Posted September 28, 2008 Report Share Posted September 28, 2008 I have the same lamp and the same problem? i just charge mine overnight usually just over 12 hours and it seems to be fine! never had no problems Quote Link to post
maclean156 0 Posted September 28, 2008 Author Report Share Posted September 28, 2008 Thanks Guys, mine took just over 12 hours to charge. What a great lamp, glad I got it. Quote Link to post
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