5in1 plus 2x15W

[inter]

I bought portable power pack from megapower 5in1 three months ago,

Use it like energy source for my camp washer&shower, charge cells, cameras
lanterns, notebook and shaver; cleaned carburetor, inflated tyres.
Its very helpful device but needs energy.
RTFollowingM: Charge time AC: 24 - 48 hours, (very long time and not for me)
Charge time DC: 2 - 4 hours (that’s what I need!)
And I added solar poly panels 2x15W on last week.
Guys, I have really cool device now!

 

[surly]

Neat. What did it run you and how many amp hours do you get from it?

 

[inter]

200usd and 18Ah

 

[inter]

second upgrade for my power pack - two foldable mirrors

 

[CaliMobber]

Ha thats a cool idea, you will have to do some tests to see how much the mirrors add. idk if it will amount to anything but who knows, I know mirror can add power but some times the extra heat offsets it. Good Luck!

 

[inter]

Thank you CaliMobber
I know that solar panel can overheat, reducing their power and lifetime,
but I live close to the 56th parallel north and we have only 1-2 hot months per year and I dont use mirrors in that conditions.

And mirrors have a double purpose - they are serving as a cover for solar panels during transportation.

 

[guthriealexander]

What kind of solar charge controller did you use, if any?

 

[Mwilliamshs]

Assuming these panels are of the 12v nominal variety and under the load of the battery make 15v volts, their 15w rating means with no efficiency losses and perfect STC, they'll make 2 amps max combined. Doubt a charge controller is in use. To verify, consider 18ah battery, 2-4 hour claimed charge time from unknown DoD (assume 50%), 9ah/4h= 2.25amps so very low risk system even without a controller.

 

[inter]

What kind of solar charge controller did you use, if any?

EPsolar PWM charge controller 5A.
I bought a thin (one inch) controller and install it between two panels, when they are fold in two.