Don't think I ever asked this one some way back in time.
Cheap controller from ali-express / fleabay type thing..
Bearing in mind that when I looked at a unit the difference was extra mosfets with s0d all extra shoring up on the bit grotty circuitry to deal with the extra oomph has anyone here recycled any aluminium fins for a better heat-sink performance? (rear was just a thin metal backer) it's one of the things I tend to save if stripping something out as a just in case (if I remember) in which case how effective was it for you? (before I waste time & heat-sink paste attempting increasing air flow needlessly
For instance we see designs for 30 / 60 / 90 amp max spec for which each spec has an additional pair of mosfet in place (ie 2 - 6 in total)
Cheap n' greasy solar charge controllers.
Cheap n' greasy solar charge controllers.
1906 ripplewatts @wind Turb-ine-erry
It's the wifes Tesla 3 (she lets me wash it)
Leaf 24
Celotex type insulation stuffed most places
Skip diver to the gentry
Austroflamm WBS
A finger of solar + shed full more
It's the wifes Tesla 3 (she lets me wash it)
Leaf 24
Celotex type insulation stuffed most places
Skip diver to the gentry
Austroflamm WBS
A finger of solar + shed full more
Re: Cheap n' greasy solar charge controllers.
Can't comment on the quality as my solar controller is Victron (oooh) and as its pumping out 3.2kW at times, it gets toasty. An £8, 5v usb fan made all the difference. My two Bob's worth would be towards inexpensive active cooling Gus.Mr Gus wrote: ↑Sun Jul 30, 2023 2:57 pm Don't think I ever asked this one some way back in time.
Cheap controller from ali-express / fleabay type thing..
Bearing in mind that when I looked at a unit the difference was extra mosfets with s0d all extra shoring up on the bit grotty circuitry to deal with the extra oomph has anyone here recycled any aluminium fins for a better heat-sink performance? (rear was just a thin metal backer) it's one of the things I tend to save if stripping something out as a just in case (if I remember) in which case how effective was it for you? (before I waste time & heat-sink paste attempting increasing air flow needlessly
For instance we see designs for 30 / 60 / 90 amp max spec for which each spec has an additional pair of mosfet in place (ie 2 - 6 in total)
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Re: Cheap n' greasy solar charge controllers.
So long as you understand that those cheapo charge controllers are very unlikely to be MPPT no-matter what the listing claims and are likely to be much less efficient PWM designs then you’re good to go.Mr Gus wrote: ↑Sun Jul 30, 2023 2:57 pm Don't think I ever asked this one some way back in time.
Cheap controller from ali-express / fleabay type thing..
Bearing in mind that when I looked at a unit the difference was extra mosfets with s0d all extra shoring up on the bit grotty circuitry to deal with the extra oomph has anyone here recycled any aluminium fins for a better heat-sink performance? (rear was just a thin metal backer) it's one of the things I tend to save if stripping something out as a just in case (if I remember) in which case how effective was it for you? (before I waste time & heat-sink paste attempting increasing air flow needlessly
For instance we see designs for 30 / 60 / 90 amp max spec for which each spec has an additional pair of mosfet in place (ie 2 - 6 in total)
If I were you I’d spend the money on a respectable brand of genuine MPPT charge controller.
12x 340W JA Solar panels (4.08kWp)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger
(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger
(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
Re: Cheap n' greasy solar charge controllers.
Damn, knew I should have said "yup, I know" they are not MPPT as an opening sentence
These are a few years old & made sense as a bundle add on for small solar (but with theoretical headroom) 100A max "CRAPacity" just thought I might do a little of what they ought (but didn't)
These are a few years old & made sense as a bundle add on for small solar (but with theoretical headroom) 100A max "CRAPacity" just thought I might do a little of what they ought (but didn't)
1906 ripplewatts @wind Turb-ine-erry
It's the wifes Tesla 3 (she lets me wash it)
Leaf 24
Celotex type insulation stuffed most places
Skip diver to the gentry
Austroflamm WBS
A finger of solar + shed full more
It's the wifes Tesla 3 (she lets me wash it)
Leaf 24
Celotex type insulation stuffed most places
Skip diver to the gentry
Austroflamm WBS
A finger of solar + shed full more