A case for XY-L30A Lead-acid battery charger (https://www.aliexpress.com/wholesale?catId=0&SearchText=XY-L30A).
A blue relay is not all inside cover - due to size and some heat, that it produce.
A FreeCAD source attached (all parts together).
PS.
The XY-L30A PCB has a serial interface (GND, TX, RX) to control settings and reading state: battery voltage, charge percent and relay state. In my cover is hole to DuPont 3 pin connector.
Connection settings: 9600,8N1
Cmd Func
on Relays enable to open
off Relays disable to open
start Start data transmit (every 1s)
stop Stop data transmit
read Read the param setting
dw10.0 Set volt-LI:'dn'
up20.0 Set volt-HI:'UP'
xx:xx Set the charge time OP 00:00 stop charge time
Data message Format:
Battery voltage + battery percent + charge time + charge status (12.0V,020%,00:10,OFF).
| charger-xy-l30a-buttons.stl | 50.5KB | |
| charger-xy-l30a-case-cover.stl | 105.9KB | |
| charger-xy-l30a-case.stl | 104.2KB | |
| charger-xy-l30a.FCStd | 276.7KB |
