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electrical:12v:maintaining_starter_battery [2024/11/21 00:43]
frater_secessus [maintaining starter batteries] |
electrical:12v:maintaining_starter_battery [2025/03/08 18:42] (current)
frater_secessus [maintaining starter batteries] specifics |
| ===== maintaining starter batteries ===== | ===== maintaining starter batteries ===== |
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| * Some [[electrical:12v:b2b#examples_-_combo_with_solar_charge_controller|combo DC-DC chargers]] contain logic to maintain the starter battery when solar power is present. | * Some [[electrical:12v:b2b#examples_-_combo_with_solar_charge_controller|combo DC-DC chargers]] contain logic to maintain the starter battery when solar power is present. For specifics see the ''starter battery maintenance behavior'' section in each listing. |
| * the Bluetti DC-DC charger has a reverse mode to send power to the starter battery | * the [[https://amzn.to/40WMp2L|Bluetti 800w alternator charger]] (DC-DC) has a starter battery maintenance function. |
| * Some standalone [[electrical:solar:charge_controller|solar charge controllers]] like the [[https://amzn.to/2PPTD2L|Morningstar SunSaver Duo]] can, for example, charge the start battery with 10% of solar harvest and the house battery with 90% using different charging profiles. As with DC-DC above, it's not self-jumpstarting in the normal sense but can help prevent the dead starter battery. | * Some standalone [[electrical:solar:charge_controller|solar charge controllers]] like the [[https://amzn.to/2PPTD2L|Morningstar SunSaver Duo]] can, for example, charge the start battery with 10% of solar harvest and the house battery with 90% using different charging profiles. As with DC-DC above, it's not self-jumpstarting in the normal sense but can help prevent the dead starter battery. |
| * [[electrical:12v:alternator#voltage-sensing_relays|dVSR isolators]] (including [[electrical:12v:alternator#lithium-specific_vsr|the Li-BIM]]) automatically connect the banks when the voltage on either side reaches defined setpoints. | * [[electrical:12v:alternator#voltage-sensing_relays|dVSR isolators]] (including [[electrical:12v:alternator#lithium-specific_vsr|the Li-BIM]]) automatically connect the banks when the voltage on either side reaches defined setpoints. |
| * Some Victron Multiplus models have a 4A starter battery maintenance feature. | * Some Victron Multiplus models have a 4A starter battery maintenance feature. |
| * the [[https://battlebornbatteries.com/product/wakespeed-48v-12v-bi-directional-dc-dc-converter/|BattleBorn/Wakespeed 48v/12v Bi-Directional DC-DC charger]] can maintain the starter battery voltage from the 48v house bank. | * the [[https://battlebornbatteries.com/product/wakespeed-48v-12v-bi-directional-dc-dc-converter/|BattleBorn/Wakespeed 48v/12v Bi-Directional DC-DC charger]] can maintain the starter battery voltage from the 48v house bank. |
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