mike rousseau Posted December 19, 2014 Report Share Posted December 19, 2014 Quick question.... I need a charger for my small 12v battery for my humminbird portable pack... How high of amps is safe for a battery like this...? I found a 1 amp battery tender junior but it's $40... If I'm gunna spend that I might as well get a car charger with a 2a setting... But is that too high of amps for these batteries...??? Thanks Mike Link to comment Share on other sites More sharing options...
Terry Posted December 19, 2014 Report Share Posted December 19, 2014 get the one amp the 2 amp might work well but sometimes the higher amp chargers don't see the small batteries as needing a charge until they are really low Link to comment Share on other sites More sharing options...
Sinker Posted December 19, 2014 Report Share Posted December 19, 2014 (edited) I've been using my smart deep cycle battery charger on the 2A setting for about 5 or 6 years now on my gel battery. It works fine. S. Edited December 19, 2014 by Sinker Link to comment Share on other sites More sharing options...
Terry Posted December 19, 2014 Report Share Posted December 19, 2014 yeah so work great others don't like small batteries Link to comment Share on other sites More sharing options...
porkpie Posted December 19, 2014 Report Share Posted December 19, 2014 In use a standard battery charger with a 2A setting, no problems. Link to comment Share on other sites More sharing options...
Fisherman Posted December 19, 2014 Report Share Posted December 19, 2014 Most batteries don't like being charged at more than C10, that being 10% of capacity. Therefore, as most portable packs are run from 7 Amp batteries. they shouldn't be charged at more than .7 Amps or 700mA. Get the right charger for the job. Link to comment Share on other sites More sharing options...
BillM Posted December 19, 2014 Report Share Posted December 19, 2014 I use a Battery Tender Jr for all my small 12V batteries. Link to comment Share on other sites More sharing options...
Fang Posted December 19, 2014 Report Share Posted December 19, 2014 Another very good one is the Tecmate Optimate 4. I bought mine at Magnacharge when I picked up the bigger 15 A battery packs. Link to comment Share on other sites More sharing options...
Terry Posted December 19, 2014 Report Share Posted December 19, 2014 Most batteries don't like being charged at more than C10, that being 10% of capacity. Therefore, as most portable packs are run from 7 Amp batteries. they shouldn't be charged at more than .7 Amps or 700mA. Get the right charger for the job. yup Link to comment Share on other sites More sharing options...
porkpie Posted December 19, 2014 Report Share Posted December 19, 2014 (edited) To each their own. Edited December 19, 2014 by porkpie Link to comment Share on other sites More sharing options...
mike rousseau Posted December 19, 2014 Author Report Share Posted December 19, 2014 I picked up a Noco genius G750 smart charger... $42.99... 750ma Link to comment Share on other sites More sharing options...
Burtess Posted December 19, 2014 Report Share Posted December 19, 2014 I don't know anything about charging batteries but my Humminbird portable came with the following charger: It puts out 1A and charges a 7AH battery.Burt Link to comment Share on other sites More sharing options...
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