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electrical:solar:shallow_cycling [2020/07/08 15:40] frater_secessus [sample build] |
electrical:solar:shallow_cycling [2020/11/30 18:07] frater_secessus [how it works] |
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====== microsolar without deep-cycle batteries ====== | ====== microsolar without deep-cycle batteries ====== | ||
- | This article describes a small, simple, space-efficient, and inexpensive | + | This article describes a small, cheap, simple, space-efficient solar configuration that may be of use to cardwellers or minimalist vandwellers. |
- | Most of the RV world is familiar with [[electrical: | + | * provides |
- | + | * will never deplete | |
- | Instead of deep-cycling, | + | * actively maintains |
+ | Instead of deep-cycling like someone might in an RV, the idea here is the starter battery can be used but never dragged below 100% state of charge)). | ||
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==== how it works ==== | ==== how it works ==== | ||
- | - a simple [[electrical: | + | - a simple [[electrical: |
- the controller' | - the controller' | ||
- | - the controller' | + | - the controller' |
- | - power is //only// taken from the controller' | + | - power is //only// taken from the controller' |
+ | |||
+ | ==== components ==== | ||
+ | |||
+ | Once you have the car, the rest of the parts will be about $100 if you watch sales. | ||
+ | |||
+ | * vehicle with starter battery (you already have this!) | ||
+ | * simple [[http:// | ||
+ | * small solar panel; 100W polycrystalline is common | ||
+ | * connector of some kind if panel is mounted off-vehicle; | ||
+ | * wiring from panel to controller and from controller to starter battery | ||
+ | * [[http:// | ||
=== Low Voltage Reconnect (LVR) setpoint === | === Low Voltage Reconnect (LVR) setpoint === | ||
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- | ==== components ==== | ||
- | * vehicle with starter battery | ||
- | * simple [[http:// | ||
- | * small solar panel; 25w-100W would be fine. | ||
- | * connector of some kind if panel is mounted off-vehicle | ||
- | * wiring from panel to controller and from controller to starter battery | ||
- | * [[http:// | ||
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* 13.6v Float | * 13.6v Float | ||
- | So a smart charger fitting | + | So a charge controller with that configuration |
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This is the tricky part. Shunts (or controllers set with [[electrical: | This is the tricky part. Shunts (or controllers set with [[electrical: | ||
- | * folks who shallow cycle might charge to 14.4v to help counteract | + | * folks who shallow cycle might charge to 14.4v to help counteract |
- | * folks who non-cycle might charge to 13.6v as if the battery is simply being maintained. | + | * folks who non-cycle might charge to 13.6v as if the battery is simply being maintained. |
+ | |||