Hello family! Hope you are well!
So there is this guy, Viktor from Netherlands who sells these roll up solar panels on eBay, he's been selling them for a few years and I've read some bits from people who have bought from him before. The panels look great but the voltage is 319v which is more than I'd like inside my camper. They are designed to be used for grid lecky.
Link to panels- https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F372210119324
One idea would be to use a step down inverter to take the voltage from 319v to a more workable 12v to charge my batteries so my set up inside my van would look like:
Split charge relay from my engines alternator feeding 2 X 6v 230ah deep cycle batteries wired in series to make 12v 230ah.
Also feeding the battery will be 3 X 100w roll up panels with a step down converter and mppt to take the voltage from 319v to 12v
From the battery I will have a 1500w pure sine wave inverter with fuse box and plugs for domestic appliances, lights etc.
The panels are 1 3.5 meter roll made up of 4 smaller cells, made up of 68 smaller cells wired together inside a flexible lamination. Am I right in thinking that if I separate the 4 cells from inside each panel I can rewire them to decrease the voltage and increase current?
Here is an instructables that I found:
http://www.instructables.com/id/Demystifying-and-Cutting-to-Size-Flexible-Thin-fil/
im feel like the cells would be rewired in series and parallel but I'm new to this so I'm just throwing some mad scientist ideas about.
id like to be able to lose the step down converter from the system because the idea of stepping down the power from 319v to charge a 12v battery then taking it back up to 240v with the psw inverter seems like a lot of messing around, bulky equipment and an inefficient way of doing things.
Here is the custom made 319v - 12v dc-dc step down controller custom made by Viktor who is the seller of the panels: https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F352214109058
id love to know what you think and if anybody has tried the roll up panels before?
thanks!
So there is this guy, Viktor from Netherlands who sells these roll up solar panels on eBay, he's been selling them for a few years and I've read some bits from people who have bought from him before. The panels look great but the voltage is 319v which is more than I'd like inside my camper. They are designed to be used for grid lecky.
Link to panels- https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F372210119324
One idea would be to use a step down inverter to take the voltage from 319v to a more workable 12v to charge my batteries so my set up inside my van would look like:
Split charge relay from my engines alternator feeding 2 X 6v 230ah deep cycle batteries wired in series to make 12v 230ah.
Also feeding the battery will be 3 X 100w roll up panels with a step down converter and mppt to take the voltage from 319v to 12v
From the battery I will have a 1500w pure sine wave inverter with fuse box and plugs for domestic appliances, lights etc.
The panels are 1 3.5 meter roll made up of 4 smaller cells, made up of 68 smaller cells wired together inside a flexible lamination. Am I right in thinking that if I separate the 4 cells from inside each panel I can rewire them to decrease the voltage and increase current?
Here is an instructables that I found:
http://www.instructables.com/id/Demystifying-and-Cutting-to-Size-Flexible-Thin-fil/
im feel like the cells would be rewired in series and parallel but I'm new to this so I'm just throwing some mad scientist ideas about.
id like to be able to lose the step down converter from the system because the idea of stepping down the power from 319v to charge a 12v battery then taking it back up to 240v with the psw inverter seems like a lot of messing around, bulky equipment and an inefficient way of doing things.
Here is the custom made 319v - 12v dc-dc step down controller custom made by Viktor who is the seller of the panels: https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F352214109058
id love to know what you think and if anybody has tried the roll up panels before?
thanks!