glenn0010
100 W
Hi all,
I have started work on a project to convert a room my dad has in a field to a fully convert it into a standalone electricity supply.
I have gathered a lot of 18650 cells and upon testing, roughly 130 of them have tested above 2Ah. I will solder these cells in a 14s8p pack (roughly 48V 16Ah). I know its not a lot but we only need a couple of lights and capacity can be added further on.
I used adhesive to glue the cells together rather than hot glue.
I will buy my dad a 600W 48V inverter however currently funds are tight. SO in the mean time I planned to use a UPS as my inverter for a 12V system using SLA batteries. I have an old UPSthat I got working however when it is running off the battery, the voltage is not the required 230V that we use over here but it is at around 178V. What could be causing this problem? Even though the battery I used for the test is old I think that it is good since under no load, it holds at 13.1V and does not sag. Also I didn't find any trimmers on the PCB to adjust any voltages. What could be the issue?
Thanks all for your help.
Any suggestions are welcome!
I have started work on a project to convert a room my dad has in a field to a fully convert it into a standalone electricity supply.
I have gathered a lot of 18650 cells and upon testing, roughly 130 of them have tested above 2Ah. I will solder these cells in a 14s8p pack (roughly 48V 16Ah). I know its not a lot but we only need a couple of lights and capacity can be added further on.
I used adhesive to glue the cells together rather than hot glue.
I will buy my dad a 600W 48V inverter however currently funds are tight. SO in the mean time I planned to use a UPS as my inverter for a 12V system using SLA batteries. I have an old UPSthat I got working however when it is running off the battery, the voltage is not the required 230V that we use over here but it is at around 178V. What could be causing this problem? Even though the battery I used for the test is old I think that it is good since under no load, it holds at 13.1V and does not sag. Also I didn't find any trimmers on the PCB to adjust any voltages. What could be the issue?
Thanks all for your help.
Any suggestions are welcome!