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<blockquote data-quote="BeAlLsTaR13" data-source="post: 5885277" data-attributes="member: 609000"><p>ive done the big three, still have stock 105 amp alternator, and battery, battery was replaced about 10 months ago</p><p></p><p>still seeing a voltage drop from about 14.1-14.3 to around 11.8, which was what it was BEFORE i did my big three... i have a cap (only use it for volt meter btw) it reads 12.3/4 volts when car is off, and between 14.1-14.2 volts when started.. the cap has a voltage knob on it, i think i tampered with it when i first got it lol, shouldnt the battery be reading around 12.9 volts when off? (cap reads around 12.4 when off but goes up to around 14.1 when started) how to i make sure the voltage read on the cap is the same as that of the battery on both off, and when car is started?</p><p></p><p>also</p><p></p><p>im only running an audioque 1200d amplifier, im looking at either optima D34/78 or kinetik hc1400 (if it will fit)</p><p></p><p>im hoping to have to upgrade only the front battery and not have to add one in the back</p><p></p><p>any help/suggestions?</p></blockquote><p></p>
[QUOTE="BeAlLsTaR13, post: 5885277, member: 609000"] ive done the big three, still have stock 105 amp alternator, and battery, battery was replaced about 10 months ago still seeing a voltage drop from about 14.1-14.3 to around 11.8, which was what it was BEFORE i did my big three... i have a cap (only use it for volt meter btw) it reads 12.3/4 volts when car is off, and between 14.1-14.2 volts when started.. the cap has a voltage knob on it, i think i tampered with it when i first got it lol, shouldnt the battery be reading around 12.9 volts when off? (cap reads around 12.4 when off but goes up to around 14.1 when started) how to i make sure the voltage read on the cap is the same as that of the battery on both off, and when car is started? also im only running an audioque 1200d amplifier, im looking at either optima D34/78 or kinetik hc1400 (if it will fit) im hoping to have to upgrade only the front battery and not have to add one in the back any help/suggestions? [/QUOTE]
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