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Author Topic: About Sealed Lead Acid Battery  (Read 457 times)

Offline marleona

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About Sealed Lead Acid Battery
« on: November 04, 2010, 01:41:12 PM »
question: paano po nadidischarge ang isang SLA battery. Meron siyang 17AH rating ibig sabihin in an hour pwede siya magbigay ng 1A for 17Hours.
Pero di ba minsan ung current nagvarry depende sa load. eh paano po kunwari sa isang oras constant 1A ung deliver through the load so ibig sabihin po ba nito 1AH ung nadrain sa battery.

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About Sealed Lead Acid Battery
« on: November 04, 2010, 01:41:12 PM »

Offline rdpzycho

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Re: About Sealed Lead Acid Battery
« Reply #1 on: November 04, 2010, 01:47:46 PM »
hindi constant ang rate pagdating sa SLA. 'yung 17Ah, kargahan mo ng 17A, 30 minutes mo lang magagamit. merong logarithmic relation 'yan. 'yung 17Ah is measured sa 20 hour rating (minsan nakasulat 'yun sa battery).

sa datasheet ng battery nakasulat din 'yang graph na 'yan.

refer to Peukert's Law for more information. ;)

http://en.wikipedia.org/wiki/Peukert's_law
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Re: About Sealed Lead Acid Battery
« Reply #1 on: November 04, 2010, 01:47:46 PM »

Offline marleona

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Re: About Sealed Lead Acid Battery
« Reply #2 on: November 04, 2010, 03:17:38 PM »
ah ok maraming salamat po. pero what if meron kaming voltage and current so pano siya mababawas sa 17AH na battery.
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Re: About Sealed Lead Acid Battery
« Reply #2 on: November 04, 2010, 03:17:38 PM »

Offline rdpzycho

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Re: About Sealed Lead Acid Battery
« Reply #3 on: November 04, 2010, 03:35:56 PM »
paanong voltage? 'yung battery ang nagdi-dictate ng voltage.

'yung current ng load mo, mababawas 'yun sa Ah rating depende doon sa Law. kung nagva-vary 'yun, 'yung average ang nakikita nung battery.
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Re: About Sealed Lead Acid Battery
« Reply #3 on: November 04, 2010, 03:35:56 PM »

Offline marleona

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Re: About Sealed Lead Acid Battery
« Reply #4 on: November 04, 2010, 04:10:22 PM »
ah ok. ung average pala ng current consumption ung nagvavary. so kunwari meron kaming 0.5A average na consumption in an hour ideally mawawala sa battery is 0.5AH kung ideally po ah not following the peukert's law.
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Re: About Sealed Lead Acid Battery
« Reply #4 on: November 04, 2010, 04:10:22 PM »

Offline rdpzycho

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Re: About Sealed Lead Acid Battery
« Reply #5 on: November 04, 2010, 04:12:04 PM »
yup.
‎"Divide each difficulty into as many parts as is feasible and necessary to resolve it."
- Rene Descartes

"For every difficult problem there is always a simple answer and most of them are wrong."
- Clayton Paul

Philippine Electronics Forum

Re: About Sealed Lead Acid Battery
« Reply #5 on: November 04, 2010, 04:12:04 PM »

 

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