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opinion:frater_secessus:charging_faster [2020/04/18 13:30] frater_secessus [charging faster isn't always better] |
opinion:frater_secessus:charging_faster [2020/04/27 21:11] frater_secessus [lead-acid] |
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There is a common misperception that charging one's battery banks //faster// is //better// or worth throwing more money at. Here are some reasons it is not always true: | There is a common misperception that charging one's battery banks //faster// is //better// or worth throwing more money at. Here are some reasons it is not always true: | ||
- | **Lead batteries** have a **maximum amount of current** they will accept, typically [[electrical: | + | ===== lead-acid ===== |
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+ | **Lead batteries** have a **maximum amount of current** they will accept, typically [[electrical: | ||
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+ | ** Deep-cycled lead batteries have a lengthy [[electrical: | ||
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+ | However: | ||
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+ | > charge current affects the SOC transition point from bulk to absorption charging - MaineSail((https:// | ||
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+ | MaineSail found that | ||
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+ | * charging AGM at C/2.5 (max rate) resulted in the battery being 63.3% " | ||
+ | * charging AGM at C/5 (min rate) resulted in the battery being 77.4% " | ||
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+ | Note that the **using 2x the charging current only sped up the whole process by 12 minutes (3.6%)** due to Vabs starting earlier but taking longer. Getting to Vabs faster could be [[electrical: | ||
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+ | Also note that for simple, timer-based Absorption configurations((like 180 minutes)) the slower charging regiment would actually complete more Absorption.((180/ | ||
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+ | ===== lithium ===== | ||
- | ** Deep-cycled lead batteries have a lengthy [[electrical: | ||
**Lithium batteries** can slurp up current wildly, but shouldn' | **Lithium batteries** can slurp up current wildly, but shouldn' |