TonyS Posted June 4, 2010 Share Posted June 4, 2010 Hi Chaps, I left a Rx plugged into my 12V lead acid battery. Just got back from a night away to find it completely flat. Plugged it into my charger and it reads 6.6V. It starts to charge then I get the low voltage warning...... Can this be salvaged? Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted June 4, 2010 Share Posted June 4, 2010 You left a receiver connected to a 12 V battery ? Quote Link to comment Share on other sites More sharing options...
TonyS Posted June 4, 2010 Author Share Posted June 4, 2010 I know............it was actually two, both receivers for the fpv gear..........! Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted June 4, 2010 Share Posted June 4, 2010 I still dont understand - all the rx I know of will fry on more than around 9V Quote Link to comment Share on other sites More sharing options...
TonyS Posted June 4, 2010 Author Share Posted June 4, 2010 Still doesn't really answer the question though Timbo....Is it dead? Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted June 4, 2010 Share Posted June 4, 2010 Apart from that, I assume you mean the 12v SLA is not charging now. Its a fact that most lead acid batteries do not take kindly to being dischrged deeply - especially if its not a leisure /marine style unit. It may well be goosed.Perhaps the best thing ( as your smart charger is being ..ehh...smart ) is to try a simple charger on it at a relatively low current. Most LA batts require charging at around 1/10thC so if its say ....80Ahr, then 8A, but try a trickle charger if you have one. I bought several of these from Aldi last year, and my field batteries ( and "summer car" ) stay connected to them all the time to keep fresh and full at all times. Quote Link to comment Share on other sites More sharing options...
TonyS Posted June 4, 2010 Author Share Posted June 4, 2010 Timbo, Sorry I didn't really answer your question. The 2.4ghz fpv receivers are recommended to be powered by a 3cell lip or 12V gel cell. I use a 12v Pb as I also use it to power the Diversity box. Not the same kind of animal as the usual plane Rx. T Quote Link to comment Share on other sites More sharing options...
TonyS Posted June 4, 2010 Author Share Posted June 4, 2010 Thanks Timbo. I'll give a trickle charger a go. Bit annoying but hey ho...... Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted June 4, 2010 Share Posted June 4, 2010 Posted by TonyS on 04/06/2010 19:02:31:Timbo, Sorry I didn't really answer your question. The 2.4ghz fpv receivers are recommended to be powered by a 3cell lip or 12V gel cell. I use a 12v Pb as I also use it to power the Diversity box. Not the same kind of animal as the usual plane Rx. T Ah...I see. Quote Link to comment Share on other sites More sharing options...
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