FoulHooked Posted June 25, 2018 Posted June 25, 2018 Looking to replace my tm batteries. I run a 24v 71lb thrust Mg on a 09 Triton 18hp. Not looki g to break the bank with batteries because i also need a new onboard charger. Can someone give me a quick rundown in the difference between amp hours and reserve capacity. Some batteries have RC listed while others have amp hours. Whats the truest listing to look at? Quote
Super User Tennessee Boy Posted June 25, 2018 Super User Posted June 25, 2018 I look at reserve capacity over Amp hours @ 1 amp. You pull a lot more than one amp when trolling so this is not a very meaningful metric. Reserve capacity which is the number of minutes the battery can stay about 10.5V at a 25 amp discharge. That's a more realistic test for performance as a TM battery. Quote
FoulHooked Posted June 26, 2018 Author Posted June 26, 2018 16 hours ago, Tennessee Boy said: I look at reserve capacity over Amp hours @ 1 amp. You pull a lot more than one amp when trolling so this is not a very meaningful metric. Reserve capacity which is the number of minutes the battery can stay about 10.5V at a 25 amp discharge. That's a more realistic test for performance as a TM battery. Yeah most batteries are listed amp hours @ 10 or 20 amps. Dont know why these are 1 amp. Quote
Super User Jig Man Posted June 26, 2018 Super User Posted June 26, 2018 Look at RC. Get the largest number you can afford. 180 or more. 200 if you can. Quote
Super User J Francho Posted June 26, 2018 Super User Posted June 26, 2018 I always thought you looked at RC for a cranker, and AH for a deep cycle. Is that wrong? 2 Quote
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