dil Posted November 26, 2002 Share Posted November 26, 2002 Picked up the new battery from Toyota today, the original battery was 70ah and 500amps, the new one is 70ah & 250amps, have I just been done over by them? or is the new battery ok? cheers Link to comment Share on other sites More sharing options...
Doughie Posted November 26, 2002 Share Posted November 26, 2002 70aH = 70 Amp-hours, which means that the battery can supply 70 Amps for 1 hour or 1 amp for 70 hours. etc.etc. not sure why it also says "500 amps" or whatever. maybe that's the absolute max that it can instantly deliver but that's a HELL of a lot of amps. The key one is the Ah rating. Higher means it's heavier-duty, got more in reserve and less likely to flatten quickly especially in the cold weather. Link to comment Share on other sites More sharing options...
dil Posted November 26, 2002 Author Share Posted November 26, 2002 Cheers Doughie, I thought it might be something like that, do you know what the supra needs to crank the engine over I know you're supposed to either equal or exceed it, it just seems strange going from 500Amps to 250Amps. thanks Link to comment Share on other sites More sharing options...
Mark Kindell Posted November 27, 2002 Share Posted November 27, 2002 250 amps seem a little low it will do the job but i would have gone for 360amp Link to comment Share on other sites More sharing options...
Matt Harwood Posted November 27, 2002 Share Posted November 27, 2002 AFAIK, the amps rating is usually indicated with 'cc' standing for 'cold cranking'. I believe thats the maximum current the battery can deliver. Idealy, you want a high ah and cc rating 250a sounds like a battery for a Starlet! Mines a 70 ah and 640a cc! - (recently replaced from a dying 500). Link to comment Share on other sites More sharing options...
MONKEYmark Posted November 27, 2002 Share Posted November 27, 2002 i just bought a battery for my polo it is heavy duty tungstan one not sure on amps but its 380 cranking power. i bought one ages ago for supra its a tungstan 70amps i think and 450 cranking power never had a mins bother with it starts everytime.the bloke i got it from had to change the terminals round as they were wrong way round.it also says 80 hours 250 cranking power seems a bit low for a supra. suppose its always best to have more power in reserve.and if you into ice wont there be a high power battery. Link to comment Share on other sites More sharing options...
dil Posted November 27, 2002 Author Share Posted November 27, 2002 Ah f*ck, toyota dealerships can't get anything right. The car starts fine, but for who long it will stay like that is anyone's guess,there technician told me 250 amps was ample for a supra, & oyota wouldn't have halved the crank ampage if they didn't think that would be enough, Matt if you make it down to the next meet , could you try & source me a super size battery like yours. cheers Link to comment Share on other sites More sharing options...
Matt Harwood Posted November 27, 2002 Share Posted November 27, 2002 No problem mate Not sure when the next one is though... Link to comment Share on other sites More sharing options...
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