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electrical:12v:alternator_charging_rates [2023/09/10 13:13] frater_secessus [estimating combiner charging] |
electrical:12v:alternator_charging_rates [2023/09/10 13:23] frater_secessus [How much will by battery charge by alternator?] |
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- | ====== How much will by battery charge by alternator? ====== | + | ====== How much will my battery charge by alternator? ====== |
This should be easy, right? | This should be easy, right? | ||
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We know the time part because we're the ones driving. | We know the time part because we're the ones driving. | ||
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===== TLDR ===== | ===== TLDR ===== | ||
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===== estimating DC-DC charging ===== | ===== estimating DC-DC charging ===== | ||
- | DC-DC charging rates are more predictable because of how they work. A 20A DC-DC will likely pump 20A into the bank most of the time. So 3 hours driving x 20A = 60Ah returned to the battery bank. The price of this predictability (and other features) is... price. | + | DC-DC charging rates are more predictable because of how they work. A 20A DC-DC will likely pump 20A into the bank most of the time. So 1/2 hour driving x 20A = 10Ah returned to the battery bank. The price of this predictability (and other features) is... price. |
- | If you need predictable charging then DC-DC is likely the answer. | + | If you need predictable charging then DC-DC is likely the answer. There are [[electrical: |
===== estimating combiner charging ===== | ===== estimating combiner charging ===== |