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electrical:12v:deep_cycle_battery [2023/04/19 18:24] frater_secessus [AGM] |
electrical:12v:deep_cycle_battery [2024/04/15 01:00] (current) frater_secessus [Chain Store Batteries] |
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**Note: This article assumes useage of 12v lead chemistries.** If you're using Lithium, this information is not as applicable. | **Note: This article assumes useage of 12v lead chemistries.** If you're using Lithium, this information is not as applicable. | ||
- | ---- | + | ===== specs ===== |
+ | |||
+ | * Ah (Amp-hours) | ||
+ | * Wh (Watt-hours) | ||
+ | * 100Ah of lead is 1200Wh (100Ah x 12.0v). | ||
+ | * 100Ah of LiFePO4 is 1280Wh (100Ah x 12.8v) | ||
+ | * cycles - the number of times the battery can be charged and discharged before being considered End Of Life.((EoL is typically considered the point where the battery can no longer produce 80% of its rated output)). | ||
+ | * Lead is typically rated at the 1/20th the current as Ah (5A for a 100Ah battery) down to 50% DoD. | ||
+ | * LiFePO4 is typically rated at the 1/5th the current as Ah (20A for a 100Ah battery) down to 80% DoD. | ||
+ | * both maximum and recommended charge/ | ||
+ | |||
+ | |||
===== Popular Deep-Cycle Lead batteries ===== | ===== Popular Deep-Cycle Lead batteries ===== | ||
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+ | === watering FLA === | ||
+ | - check to ensure plates are at least //covered// with liquid | ||
+ | - charge fully | ||
+ | - check water level again, adding to fill mark | ||
+ | |||
+ | This order is important because the electrolyte expands a bit as it charges, so filling completely //then// charging could result in spillage and loss of acid. | ||
==== VRLA - Valve Regulated Lead Acid ==== | ==== VRLA - Valve Regulated Lead Acid ==== | ||
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Further reading: | Further reading: | ||
- | ---- | + | ==== Telco backup batteries ==== |
+ | |||
+ | Telcos and other companies that need battery backup rotate their AGM batteries out regularly; | ||
+ | |||
+ | These backup batteries are not meant to cycle, vandweller style. | ||
+ | |||
+ | Can you make them work for you? Maybe, but people who can squeeze some use out of them already know what they are doing. | ||