'Vehicle' Mounted Vs Un-Mounted - For Full Time RVing - Pros & Cons
swamp said
03:58 PM Dec 9, 2017
hi Passing thru 600watt roof top fixed rigid panels ----only needs a 40 /45 amp MPPT controller 160--250 watt portable run this thru separate controller If u want 1 controller 60amp==$$$ wired 12/24 /36 volt prefer 12v 3 x 12 volt AGM 360AH 240v 40amp battery charger dc to dc charger 40amp
None of these items will be the cheapest cost as it is a med--high performance system by van standards
Remember around 2watt solar per 1Ah gives performance
U need to find out if the truk is 24v and allow for this
Remember to panel in 120--160w sizes most common and wont flex as much as a larger panel . These sizes will be best suited also due to the mounting realestate available any way .
-- Edited by swamp on Saturday 9th of December 2017 04:02:41 PM
T1 Terry said
05:23 PM Dec 9, 2017
daffyfrancis wrote:
Hi TI Terry,
Excellent idea & advice.
I had a quick Ebay search & notice an Au site - easyget-au has 2x100w 36 cell flexible panels for $320 delivered ( I have no association or recommendations)- so I presume a more detailed search will bring up other alternatives at reasonable cost.
When I look at my quarterly home power bills here in Tassie your lithium or other well designed expensive set ups suitable for long term travellers seems cheap by comparison over the potential system lifespans.
David
Vic Offroad and a few other E Bay names all belong to the Sun Yee group and they buy up end of production run lots and often have good prices for the semi flexible panels, you just have no idea which ones you will get. There are a heap of different types, the 6 eyelet gloss finished, the 6 eyelet matt finished with very narrow edging and the 8 eyelet with large edging. Always worth the effort to pop the lid off the junction box and make sure the connections are well sealed, easy enough to add some neutral cure sealant before the moisture gets in and wrecks the little circuit board and connections.
First off the size of the panel folded up is listed as 60cm, yet marked on the photo as 30cm, there is no weight mentioned, the nonsense about mono crystalline having superior heat tolerance compared to polycrystalline, it's actually the other way around, the claim that the MPPT controller will harvest more than the PWM controller and the PWM controller will clip the extra available current and be lost.
Look at the MPPT controller magnified in the entry pictures, it says max charge current 10 amps, the specs say the max power current 10.92 amps ...... so which controller would be doing the clipping with 10.92 amps available raw without the magic increase an MPPT controller claims it can produce (97% I believe was the claim) yet will only allow 10 amps output? To me it clearly shows a 15 amp PWM controller mounted close to the battery would outperform this MPPT controller.
You really do need to understand what (watt) you are reading so you sort the spin and straight out bull from reality
hi
Passing thru
600watt roof top fixed rigid panels ----only needs a 40 /45 amp MPPT controller
160--250 watt portable run this thru separate controller
If u want 1 controller 60amp==$$$
wired 12/24 /36 volt prefer 12v
3 x 12 volt AGM 360AH
240v 40amp battery charger
dc to dc charger 40amp
None of these items will be the cheapest cost as it is a med--high performance system by van standards
Remember around 2watt solar per 1Ah gives performance
U need to find out if the truk is 24v and allow for this
Remember to panel in 120--160w sizes most common and wont flex as much as a larger panel . These sizes will be best suited also due to the mounting realestate available any way .
-- Edited by swamp on Saturday 9th of December 2017 04:02:41 PM
Vic Offroad and a few other E Bay names all belong to the Sun Yee group and they buy up end of production run lots and often have good prices for the semi flexible panels, you just have no idea which ones you will get. There are a heap of different types, the 6 eyelet gloss finished, the 6 eyelet matt finished with very narrow edging and the 8 eyelet with large edging. Always worth the effort to pop the lid off the junction box and make sure the connections are well sealed, easy enough to add some neutral cure sealant before the moisture gets in and wrecks the little circuit board and connections.
T1 Terry
www.ebay.com.au/itm/200W-12V-Folding-Solar-Panel-Adjustable-Portable-Caravan-Boat-Camping-Battery-AU/391787327325
First off the size of the panel folded up is listed as 60cm, yet marked on the photo as 30cm, there is no weight mentioned, the nonsense about mono crystalline having superior heat tolerance compared to polycrystalline, it's actually the other way around, the claim that the MPPT controller will harvest more than the PWM controller and the PWM controller will clip the extra available current and be lost.
Look at the MPPT controller magnified in the entry pictures, it says max charge current 10 amps, the specs say the max power current 10.92 amps ...... so which controller would be doing the clipping with 10.92 amps available raw without the magic increase an MPPT controller claims it can produce (97% I believe was the claim) yet will only allow 10 amps output? To me it clearly shows a 15 amp PWM controller mounted close to the battery would outperform this MPPT controller.
You really do need to understand what (watt) you are reading so you sort the spin and straight out bull from reality
T1 Terry