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electrical:12v:b2b [2022/10/31 13:08] frater_secessus [sizing] |
electrical:12v:b2b [2022/12/17 17:05] frater_secessus [Ring Automotive] |
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The DC-DC should be big enough to meet your charging targets given the amount of driving you do and the | The DC-DC should be big enough to meet your charging targets given the amount of driving you do and the | ||
- | contributions of [[electrical: | + | contributions of [[electrical: |
Note that [[opinion: | Note that [[opinion: | ||
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==== Renogy ==== | ==== Renogy ==== | ||
+ | |||
+ | === DCC series === | ||
+ | |||
+ | |||
[[https:// | [[https:// | ||
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Note: a [[https:// | Note: a [[https:// | ||
- | === solar+alternator behavior | + | == solar+alternator behavior == |
This device' | This device' | ||
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{{http:// | {{http:// | ||
- | === charging examples | + | == charging examples |
Using the above information and a theoretical scenario where we have 15A((~250w of panel under excellent conditions)) of solar charging available during the daytime, an alternator capable of delivering 50A, and a bank able to accept 50A of charging: | Using the above information and a theoretical scenario where we have 15A((~250w of panel under excellent conditions)) of solar charging available during the daytime, an alternator capable of delivering 50A, and a bank able to accept 50A of charging: | ||
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Note: some have reported better alternator charging performance with the D+ (smart alternator) wire connected, even with plain alternators. | Note: some have reported better alternator charging performance with the D+ (smart alternator) wire connected, even with plain alternators. | ||
- | === starter battery maintenance behavior | + | == starter battery maintenance behavior == |
> If the service battery is in float charge stage, the starting battery will be charged at the same time. The charging voltage is limited at 13.8V. The charging amperage is limited at 25A.((https:// | > If the service battery is in float charge stage, the starting battery will be charged at the same time. The charging voltage is limited at 13.8V. The charging amperage is limited at 25A.((https:// | ||
+ | |||
+ | |||
+ | |||
==== Kisae ==== | ==== Kisae ==== | ||
[[https:// | [[https:// | ||
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Note: the Ring appears very similar to the Kisae (above). | Note: the Ring appears very similar to the Kisae (above). | ||
- | ---- | + | ==== Sterling ==== |
+ | |||
+ | The Sterling BBS1230 Pro Batt Ultra is a 30A boost/buck 30A charger. [[https:// | ||
+ | |||
+ | |||
==== Votronics Triple ==== | ==== Votronics Triple ==== | ||
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+ | The BB1240 has a starter battery maintenance (reverse charging) feature. This might be true for all the 2022 redesigns. | ||
==== Renogy ==== | ==== Renogy ==== | ||
[[https:// | [[https:// | ||
- | * DC1212 series DC-DC isolators | + | === DC1212 series |
- | * DCC-series of voltage sensing b2b chargers in [[https:// | + | |
+ | |||
+ | DC-DC chargers | ||
These chargers appear to have a 3 hour absorption duration. | These chargers appear to have a 3 hour absorption duration. | ||
>> By default, absorption will not exceed 3 hours to prevent overcharging. | >> By default, absorption will not exceed 3 hours to prevent overcharging. | ||
+ | |||
+ | === Rego series === | ||
+ | |||
+ | [[https:// | ||
+ | [[https:// | ||
+ | |||
+ | * configurable output current - 60A/ | ||
+ | * voltage-sense triggering rather than D+ | ||
+ | * 10-300min boost duration in USER mode | ||
+ | * 120min boost duration still hard-coded in predefined lead-chemistry modes, BUT will drop to Float if output is less than 3A (ie Absorption termination based on endAmps) | ||
+ | |||
+ | [[https:// | ||
==== Redarc ==== | ==== Redarc ==== | ||