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| Cold cranking amps; CCA in battery | |
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| Tweet Topic Started: Sep 12 2015, 10:28 AM (1,148 Views) | |
| MPG | Sep 12 2015, 10:28 AM Post #1 |
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Good mornin Metro land How many CCA does a battery need for my 91 Metro I am located in south central Pa here Though location may make a difference My current battery appear to be larger than the battery box Current battery has 230 CCA |
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| Metbob | Sep 12 2015, 10:41 AM Post #2 |
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Are you sure it's 230cca that is what most lawnmower batteries are. I like to run the highest CCA I can get, with the most reserve that will fit. With you living up north that will really help start up on cold days. I have run the big lawnmower batteries on small outboards to save on the weight and they worked fine. |
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| MPG | Sep 12 2015, 10:56 AM Post #3 |
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Yes 230 CCA is on the lable |
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| Old Man | Sep 12 2015, 11:00 AM Post #4 |
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Here is some reading for you; https://www.google.com/#q=cca+91+Geo+Metro I believe the minimum is around 400ccr. I have an 800ccr battery in my '91. I would suggest to you that you should get around an 800 because of the winters in your location. |
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| myredvert | Sep 12 2015, 11:06 AM Post #5 |
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myredvert
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From the 94 FSM in the forum library: Reserve capacity 50 minutes, CCA 390 (link>>) 1994 FSM Section 6D1 Battery Did you ever get a chance to check your charging output using the FSM procedure from your other thread? I would take reduced dry cranking time on the engine with a bigger battery over the < .1 mpg/10 lbs savings any day. |
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| MPG | Sep 12 2015, 12:17 PM Post #6 |
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No have not checked output I'll need to wait till next week at work I can use my friends tools Am a novice with very little tools Adding tools as I can afford I just switched battries with my wife's minivan Minivan battery has 630 CCA at 0 deg F and 785 at 32 F I'll try that see what results |
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| myredvert | Sep 12 2015, 02:59 PM Post #7 |
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myredvert
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Cool. Using a voltmeter on the battery is a very good way to start getting familiar with it. ![]() Take your time, make sure you have the proper setting on the meter to read the voltage (whatever the next higher setting than 14 volts is), and make sure you have the correct probes and terminals absolutely and positively identified correctly before you put the voltmeter probes on them. |
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| MPG | Sep 12 2015, 09:02 PM Post #8 |
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Thank you redvert |
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| rv93 | Sep 16 2015, 11:11 PM Post #9 |
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Member
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Factory batteries were around 400cca. I doubt it *needs* to be nearly that high, especially in warmer climates, due to the low displacement and relatively low compression (my 0.75l motorcycle with 13:1 compression has a 120cca battery and starts up just fine even below freezing, though the cams make dynamic compression a good bit lower, so that may not be an entirely fair comparison). Like others have said though, the higher the better. |
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