Reddit mentions of Lixada 10W Solar Panel Charger 5V USB Ports for Cell Phone High Effiency Outdoor Activities Lighting Use Portable Ultra Thin Monocrystalline Silicon

Just wrote this as a comment on another sub and thought it might be useful to someone here.

Rundown of my experience with the power banks I own:

Klarus CH1X

• This is my short trip/minimalist charger, but can be expanded with swappable 18650 batteries. Some battery brands include USB ports integrated into the batteries for recharging as well.
  
• With a 3.6k mAh battery, comes in at 2.9oz. I can add another battery to double the capacity to 7.2k mAh and 4.7oz, or a third battery for 10.6k and 6.5oz. At this point, it’s more about the flexibility than weight savings.
  
  Anker Powercore 10k
  
  
• When I just want to toss in a bank for 3-4 days and have enough juice to run my iphone, AppleWatch and headlamp while taking photos, video and tracking my route with a GPS app.
  
• The lightest integrated bank at this capacity that I’ve found, and regularly $25 on Amazon.
  
• 10k mAh and 6.35oz
  
  Anker Powercore 10k PD
  
  
• I recently went on a 2 week backpacking trip on the John Muir Trail, which included stopping into civilization for burgers and charge ups. The standard battery banks take the better part of a day to recharge, but these newer “PD” banks use USB-C connections and higher wattage charging adapters to cut that down to less than 4 hours. This worked wonderfully at Red’s Meadow while we ate and resupplied.
  
• A tad heavier than the older powercore and at a premium of $45 (got mine on Amazon Day sale though), plus the price and weight of an 18W charger.
  
• 10k mAh and 6.7oz.
  
• I can also add the other Anker 10k for a total of 20k mAh and 13oz, if you’re rocking a YouTube level video production.
  
  Bonus item: Lixada “10W” Solar Panel
  
  
• Im not a fan of the bulky and heavy name brand solar chargers, but I f you’re not sucking down huge amounts of power every day, a cheap and light supplemental solar panel like this is a great addition. I’ve tested this several times on open (minimal shade) trails, plugged into the Anker while I hike and it does a surprisingly good job of topping off the bank or getting extra mA before needing to recharge on longer trips.
  
• Trim some of the extra plastic off to save another ounce of weight. Do the math by pairing it with a smaller bank and you can come in at the same weight or less than a higher capacity bank.
  
• Real world output of 3W and 2.75oz trimmed.
  
• I plan on trying this out with the Klarus to see if I can get a sub 6oz solution that can be indefinitely sustainable (given the proper conditions).

I got one of these for $15.99: https://smile.amazon.com/dp/B01MCXZJ8Y I've cut it down a bit and it now weighs 83grams.

I measured the output of it in close to "average conditions" for a sunny day and was able to reliably get 1.5watts for the output. While this is far from what it's marketed as, it's enough to tickle charge my battery enough to justify the weight for longer trips. Not yet field tested.

Doesn't look exactly the same, but close: Amazon link for folks in the US

That's a nifty looking device. Might have to grab one and log some usage.

Here's the link to that panel. Sorry about mess, on my phone atm...

Lixada 10W Solar Panel Charger 5V... https://www.amazon.com/dp/B01MCXZJ8Y?ref=ppx_pop_mob_ap_share

Was also able to find something like this on a post in /r/ultralite

Docooler Solar Charger 10W Portable Ultra Thin Monocrystalline Silicon Solar Panel 5V USB Ports for iPhone 6s/6/Plus iPad Galaxy S6/S7/Edge/ Nexus 5X/6P High Effiency Outdoor Activities Lighting Use https://www.amazon.ca/dp/B01MCXZJ8Y/ref=cm_sw_r_cp_apa_i_dKjuDbESVTY0Y

Maybe something like this is easier?

https://www.amazon.com/Lixada-Effiency-Activities-Lighting-Monocrystalline/dp/B01MCXZJ8Y/

$16 is not that expensive and then you can charge everything forever.