.50mah I bought a fake one haha

@@VMUKUMAR i bought a 100watt solar panel for almost 200USD few yrs ago...you can take a 10 amp ammeter and connect it directly for a few seconds to the panel in the hot sun to test short circuit current...it should be around at 3amps or so for 18v panel..do not connect longer than few seconds for you to read the meter because it it technically short circuit and it will heat up the panel

Thanks for the info paul

The lower the amps (current, I) the lower the voltage drop (volts, V). So the fuller the battery, the less it will pull from the panel, the less voltage drop you'll get, so for keeping a battery floated it won't make a great difference, unless your cable is really thin and long and your battery is a long way from full and the panel is in full sunlight.

Kingstonian here. What's your current setup?

@@PaulPaid 650 watts of panels. I need to upgrade inverter to pure sine wave and a bigger battery bank soon. I am not using all the power the panels are making.

I need some used 250 watt solar panels

Greetings from Guantanamo Bay.

@@PaulPaid I got my 1000 watt Renogy pure sine wave inverter a few months now and i'm very pleased with it.

No problem 👍 thanks for watching Manuel

Works for electric stove or mobile charging etc?

Very welcome

but how would you connect the laptop to this type of a setup?

you forgot the charge control mppt you have to have a fuse block at least a 60 or higher u should watch will browse tutorial as well and cables to go from mppt controller and i t hank it goes solar panel battery then charge controller then inverter butt i could be wrong will browse has great tutorials i am going to get me a back up inverter and a couple of solar panels for my amps and computer

Many of these cheap Chinese mppt controller can be connected directly to the PV first.

Also get a boost mppt controller and you can directly plug in and charge your e bike batteries very efficiently.

That depends on how it is set up and what you use it for. If the camper sits for months on end without running to charge the cranking battery, trickle charge it so the motor will turn over next time you hit the key. On the other hand, if you use the "leisure" battery more often, the more wattage available the better! But it needs to be charge controlled with a decent quality charge controller that has a load circuit capable of around 7.5 amps (12v fridges etc.). I have both for my set up that comprises of two deep cycle batteries at around 105ah (lead acid) connected in parallel for the "leisure" battery, 400w solar and 15 amp controller, this also charges via relay isolator directly from the alternator/cranking battery. One cranking battery 900cca 12v, with a 40watt solar trickle charger that has an inbuilt thermal overload switch. My setup is not ideal but copes sufficiently for a family of 4.5 camping for 2/3 nights in tropical Qld Australia. That includes running a big 12v refrigerator and fans, lights and charging devices. Occasionally powering a Bluetooth speaker or similar. The idea is to use the excess power from the solar and keep the batteries at a state of charge, batteries are century batteries that are all 5 years old. Regularly topped up with distilled water.

He had me at.. Hmm must read the instructions LOL

It looks like a 40 watt solar panel.

Hi Chris worked really well 🍷☀

was supplying 13.7v in the vid

@@grimthreeper4112 watts ≠ volts

Volt-ampere

err, also, amps x volts = watts

13.7 display on the controller is the float voltage its to stop it over feeding the battery. 13.5 is better and what i have mine set on.

tow days

dont use a fridge

Hi Peter not sure is it a portable washing machine !!

@@MrMeltedwellies just an ordinary one but if a 100ah battery at 12 v is 1200 watt hours and you can use half of it to protect the battery, then on paper, a 250 watt hour wash cycle would be fine, no?

@@petermurphy5302 No, the startup current of the motor can be huge. Even my 1kw pure sine inverter wont run a lawn mower, let alone a washing machine.

At 30% more watts and that's what the washing machine will draw on start up.

Yes it will

Thanks for watching!

yeah but i doubt this old guy understands that hmm did you set it correctly and sought the problem?

@@oilpond Yeah, he doesn't understand it. And no, I haven't solved the problem. I even built a microcontrolled telemetry unit to measure voltages and currents and log it for months(in fact, it is logging even now, I have millions of rows of data I can go trough and analyze). Nothing came from it. Things are close to ideal conditions and even so, the charger wouldn't turn to float charge mode. I concluded that these cheap chinese charge controllers are just mere voltage regulators. On the web I came across other people having the same issue. It's PWM for sure as it relies on the technology to control voltage, but it is not a true charger. It's only capable of charge stages 1 and 2. Any decent 14.4v power supply plus a high current schottky diode will give you that. Lucky me I drain the battery during the night anyways so it's pretty much hungry for a charge during the day, as it drinks well from the charger as it provides the amps, otherwise I could have lost it to boiling a long time ago. I have a circuit in mind that can do true 3-stage charge of a lead acid battery. One day I'll commit it to a circuit board, right now I'm too busy for that.

No it was supposed to be 60w still working fine

So long as you get some sun mine did Petar

@@MrMeltedwellies I’m only worried about cooking my battery as I’m not sure does have a protection of overcharging , if you can advice me will be great as at the moment I have to start my car every day because if I let it sit for 2/3 days the battery goes flat , car was driven 2 months ago for last time :)

Hi Petar if you have a charge control unit fitted you should be fine as its protects your battery

@@TheIskorpitx the 13.7 it showed when he pressed teh button was the cutoff voltage for the charge controller. it will stop the battery from charging at whatever its set at.

bloody hell Owen send me the link please

12v 😀

..and 100W .. £20 just for da Panel

@@rexgeorg7324 Any links? - I can only see kits for £50+

@@ChristianThomasTring k

@@ChristianThomasTring Wrong time of year

Nvm Didn’t watch all the way 😂 I see it now

No. The controller is not water resistant at all.

when you fit the charge control unit it does it all for you hope this helps

@@MrMeltedwellies does it?? 🤔🤔 I thought you had to manually adjust it....so that's reassuring to me One more question....would a single electric camping hob be ok to run off it plse? It's 750w with a UK plug Could I take the plug off and hook the wires up to + & -??

Do I need to buy an invertor aswell plse and what would you say is the biggest device or appliance I could use if using a 12v inverter to 4000w plse? I need to buy what's needed ASAP plse so ANY HELP TO A DAMSEL IN DISTRESS would be most appreciated 🙌🏽🙏🏼

@@twisted_sista_bmccleanmiss6048 The output can power something.. but honestly you'd be best to buy a pure sinewave inverter from Victron, make sure you got good clean output.

Yes 100%

Perhaps open circuit, but a lead acid battery really wants to be floated at 13.6v to charge properly, and ideally charged to ~14.5v every 6 months. A quick and rough solution would be to use diode/s to drop the voltage ~0.2-0.7v. Schottky diode/s will be a little more precise than say a 1n400x.

really crafty sods thanks for watching Mark

£77.88 now

60 watt so they say

actually those controllers are pretty much the same efficiency. there are multiple youtube videos on it

@@antomanelven PWM controller cannot utilize full power of the PV because the current are tied between input and output. If the input is 18v 10A, and the output is set to 13.8v, the output will also has 10A, that's 76% efficiency. Meanwhile an MPPT controller always utilize buck converter, so their efficiency is theoritically 100% but from parasitic loss they'll ended up being in the high 90% efficiency, with the example above if the input has 18v 10A, the output at 13.8v will be 11.73A. With PWM controller, the higher the delta between PV voltage and output voltage, the higher the loss, that's not the case with MPPT until a certain point like at 10% pulse width when the buck converter itself is breaking down in efficiency. And I have not even talking about the PV MPP curve yet.

doubt

@@antomanelven you can doubt all you want, that's the reality

no

He mistook 0.1v for 1v too. Useless.

who says "rubbish" anymore LoL I bought one , i'll test it in December Post it in 2021, now i'm going to watch Benny Hilll.

hey lets test it and not know what the buttons do...... back to lockdown for you..

0.1 V not 0.01 V

@@pollos4157 has it, correcting the correction. Gotta love it!