Looking to replace my pc 680 battery. Last 2 pc 680 batteries having problem cranking in cool weather. Was told by odessy to set charging voltage to 14.7 no better cranking. Did all test , on wiring and relays no voltage drop in wiring when cranking. Skytech Starter tested good. Cranking in cool weather 45 degrees pulls battery down to 9 volts at starter and on top of battery post. Just barley starts. After starting and warmup cranks ok. Not a lot of reserve power. Any one using aerovoltz batteries.
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