Both sides previous revision
Previous revision
Next revision
|
Previous revision
|
electrical:solar:shallow_cycling [2023/04/08 13:18] frater_secessus [components] |
electrical:solar:shallow_cycling [2023/04/08 13:41] (current) frater_secessus [shallow-cycling] |
| |
[[opinion:frater_secessus:car_micropower|Here]] is a trimmed-down version of this page. | [[opinion:frater_secessus:car_micropower|Here]] is a trimmed-down version of this page. |
| |
| |
====== microsolar without deep-cycle batteries ====== | ====== microsolar without deep-cycle batteries ====== |
* extremely inexpensive | * extremely inexpensive |
* provides 12v power and USB power during daylight | * provides 12v power and USB power during daylight |
| * could run small [[electrical:inverter|inverter]] loads (<100w?), up to the ability of the panels to deliver. Note: inverters impose additional losses (typical 10-20%) which can be significant in microsolar setups. Running loads from native DC power is usually preferable. |
* will never deplete the starter battery so you get stranded | * will never deplete the starter battery so you get stranded |
* actively maintains the starter battery | * actively maintains the starter battery |
* connector of some kind if panel is mounted off-vehicle; cable gland if the panels are mounted on the vehicle and the wire is passed through the | * connector of some kind if panel is mounted off-vehicle; cable gland if the panels are mounted on the vehicle and the wire is passed through the |
* wiring from panel to controller and from controller to starter battery | * wiring from panel to controller and from controller to starter battery |
* [[http://amzn.to/2xHjBi7|usb/12v power outlet]] wired to the LOAD output of the controller. An outlet with USB ports in it would allow the controller itself to be mounted discreetly and closer to the battery. | * [[http://amzn.to/2xHjBi7|usb/12v power outlet]] wired to the LOAD output of the controller, if desired. An outlet with USB ports in it would allow the controller itself to be mounted discreetly and closer to the battery. |
| |
==== a word about battery voltage and solar power ==== | ==== a word about battery voltage and solar power ==== |
===== shallow-cycling ===== | ===== shallow-cycling ===== |
| |
//Shallow-cycling// is a more aggressive approach, allowing for more power in the daytime and some power for use after sundown. It is most **suitable for starter batteries with removable cell caps** so you can add distilled water; they will outgas a bit under heavy use. | //Shallow-cycling// is a more aggressive approach, allowing for more power in the daytime and some power for use after sundown. It may also allow the use of inverter loads that have startup surges. This approach is most **suitable for starter batteries with removable cell caps** so you can add distilled water; they will outgas a bit under heavy use. |
| |
The charging setpoint is set somewhat higher, ~14.2v. This will result in minor outgassing and a bit more power (**76.18W** using the panel data above). [[electrical:12v:charging#watering_batteries|Battery watering]] is mandatory. | The charging setpoint is set somewhat higher, ~14.2v. This will result in minor outgassing and a bit more power (**76.18W** using the panel data above). [[electrical:12v:charging#watering_batteries|Battery watering]] is mandatory. |