electrical:12v:battery_capacity
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electrical:12v:battery_capacity [2021/05/03 10:29] frater_secessus [C notation] |
electrical:12v:battery_capacity [2021/05/03 10:37] frater_secessus [other than 20hr rates] |
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Note: most deep cycle manufacturer's rate capacity at C/20, due to Peukert effect on lead chemistries.((Lithium doesn't not have a significant Peukert effect. Capacity measured by C/20 and by amp-counting will be nearly identical)). In other words, a 100Ah battery will deliver 100A with a 5A load. See table at bottom for other load levels. | Note: most deep cycle manufacturer's rate capacity at C/20, due to Peukert effect on lead chemistries (see below).((Lithium doesn't not have a significant Peukert effect. Capacity measured by C/20 and by amp-counting will be nearly identical)). In other words, a 100Ah battery will deliver 100A with a 5A load over 20 hours. |
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===== other than 20hr rates ===== | ===== other than 20hr rates ===== |
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For other than C/20 loads((flooded)): | Because of the Peukert effect, lead bank //measured// capacities are strongly affected by dicharge rate. Sample data below is for flooded lead acid. C/20 capacity is multiplied by the factor below to find projected capacity at given discharge rates. |
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| Example: our battery is rated at 100Ah when drained at 5A over 20 hours. If it is drained at 20A in 5 hours it will have an observed capacity of 70Ah (100Ah x .7). |
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electrical/12v/battery_capacity.txt · Last modified: 2022/09/22 12:19 by frater_secessus