DIY Folding solar car battery charger

DIY Folding solar car battery charger

Do you have a vehicle you don’t drive often? This DIY folding solar car battery charger is a great way to ensure it always starts.

KINGSOLAR™ Highest Efficient 60W Foldable Solar Panel Portable Solar Charger Dual Output (USB Port + DC Output).

Instapark® Mercury27 Portable & Foldable 27 Watts Solar Battery Charger with DC 12V Output.

“Watt’s Up” RC Watt Meter & Power Analyzer WU100 Version 2

HQRP Solar 10A Charge Power Controller / Regulator 12V / 24V 10 Amp with LED Indicator plus HQRP UV Meter.

But this one should also work (untested):

Instapark INCC1205 12V / 5A Waterproof PWM Solar Charge Controller.

Finally, this is the cigarette lighter extension cable I sacrificed to the power gods:

Milliard 12ft 12V Car Outlet Cigarette Plug Extension Cord/Cigarette Car Extender Cable with 5 Amp Fuse for Protecting Devices.

Anderson Powerpole Connectors 10 Pair Genuine.

Crimper, Ergo- Anderson Power Pole Products.

Klein Automatic Wire Stripper.

Hakko FX888D-23BY Digital Soldering Station FX-888D FX-888 (blue & yellow).

Curious about the micro USB cigarette lighter adapter? It’s the best one I’ve found so far:

Belkin Micro Car Charger with 3-Foot 30-Pin ChargeSync Cable for iPhone 4 / 4S (2.1 AMP).

Here are some of the materials used:

Vktech 150pcs 2:1 Heat Shrink Tubing Tube Sleeving Wire Cable 8 Sizes 2-13mm Black.

Kester 44 Rosin Core Solder 66/44 0.80mm(0.31 inches) 1 lb. Spool.

16 Comments on “DIY Folding solar car battery charger”

  1. I have a 2000 Ford diesel truck that I might drive only on weekends same as you not a lot. In the winter
    Your suggestion would be the 60 w to keep batter charged?

  2. As a van-dweller, this is exactly what I need
    Thanks a lot! I don't have sodering tools. What if I just splice, twist and tape?

  3. I thought most of these mini panels have a form of built in charge controller already or your phone has some type of controller. Please correct me thanks.

  4. so… if I plugged a DC male to male plug from the 12v DC female plug to a 12v DC female plug connected to the solar input on the solar controller would that work?

  5. have you looked into swapping the battery for large capacitors the recharge is much faster and the life span is much longer with this solution your set

  6. I picked up the 27 watt solar charger initially intended to power up my camping gear… mostly lithium power banks using the usb connectors but now I am going to mod it and replace the battery tender for my motorcycle. The 27 watt will fit the bill nicely. Thanks for sharing!

  7. Charging via the cigar lighter will only work if it is directly connected to the battery, and doesn't go through the ignition switch first, as is the case with mine.

  8. Are you gonna add some kind of overcharge protection, or does the controller cut off when the battery reaches a certain voltage? Seems like a good idea but, leaving it on the battery all the time will shorten battery life.

  9. I have a anker folding solar panel but it only has 2 usb outputs..5v no 12v pigtail..can it still be used to charge a 12v battery??

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