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Old 07-22-2019, 06:12 AM
vybrano vybrano is offline
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Default Anybody understand batteries? Which one to buy?

I have ATV. With electric start GY6 150cc engine. And about 70W worth of accessories on that ATV.

- I think I will go with lead-acid battery, because of price?

- I see 5 Ah, 7 Ah, 9Ah, 22Ah....... More Ah is always good, right? How many?

- If I try to use battery from my kick-start-only motorcycle on automatic-start motorcycle, it won't work. But I can't see any parameter that would indicate where this battery is going to work. I just see Ah and type (lead-acid etc) not kick-start only?
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Old 07-22-2019, 06:48 AM
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Functional Artist Functional Artist is offline
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There are (2) main types of batteries:
Starting batteries & Deep Cycling batteries

Starting batteries are designed to release a lot of power (amps) at once
...to be able to turn over an engine, to start it.

Deep Cycle batteries are designed to release it's power (amps) at a steady/consistent rate, for an extended period of time.
...like to propel the vehicle NOT just to start it.


So, for starting an engine you need to be concerned with CCA (cold cranking amps)
...the AH indicates Amp Hours (deep cycle battery capacity)

Hope it helps
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Old 07-22-2019, 07:31 AM
vybrano vybrano is offline
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Hmmmm, I'm trying to buy battery from this site https://www.lazada.co.th/catalog/?sp...tery%2012v_0_1 (it's like a local Amazon over here) and I can't see, that any battery would have specified its CCA.
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Old 07-22-2019, 09:55 AM
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Look for lead acid motorcycle starting battery
...or even a riding-on lawn mower starting battery

For example, maybe something like this:
...notice that it lists a 310 CCA rate

https://www.amazon.com/Yuasa-YUAM720...ateway&sr=8-11
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