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Looking at some of the small portable/fold up solar chargers as something to throw in the pack to charge Garmin alpha 200i and the tt15 collar along with other small things, phone, headtorch etc. I've thought about a battery bank but I'd rather have something that provided ongoing power if the worst came to the worst. Any recommendations?
Get both....can't reccomend any particular but battery banks are pretty compact and light these days and solar chargers are also pretty light too best of both worlds
The new nitecore battery banks are bloody impressive size and weight wise.
Ive had one of these for a few years.
https://nz.banggood.com/BlitzWolf-20...r_warehouse=CN
It appears that one is no longer available, but there's other similar units around. I only paid about NZ$60 from memory. It works pretty well, if you combine with a USB power bank, you can leave the power bank charging in the sun during the day at camp, and then use the Power bank to charge your device's over night etc.
I have a little 2 bay 5v battery charger too, which will charge any battery technology, from sizes from AAA up to 18650's, which is pretty handy, it can be powered off the panel direct or the power bank.
I have this 10w folding solar panel from Jaycar. ($70)
https://www.jaycar.co.nz/10w-solar-m...cable/p/MB3595
Charges my phone about as fast as a wall charger when in full light.
Only downside is it’s only water ‘resistant’, and the ‘hinge’ doesn’t fully fold flat, I guess to protect the cable. This causes a ~1cm gap at that end when folded, which might get crushed if you’re not careful with packing it.
Weighs about 300g without cable.
I also have a 20k mAh powerbank which cost <$40, and weighs 400g without cable. Obviously more compact than the panel too. A lower capacity bank would be lighter, I expect. 20k was heaps for 3 nights, charging a couple of phones, plus running an LED hut light for hours.
I’d probably just take the big powerbank for up to 3-4 nights away, depending on expected usage. I got the solar more for what-if/emergency use in mind.
Think about when you’re likely to be charging your devices in the hills - at night in camp with the powerbank, or trying to remember to set up a panel while you’re glassing or having a snooze during the day?
They can be clipped to the outside of a pack etc, but still need to be facing the right direction to get the juice flowing.
I do have another wee 2x18650 powerbank, good for 1-2 nights for the phone and headlamp, but probably wouldn’t suit the amount of devices you want to charge.
I have a project solar panel from repco. Does a great job! And when I'm not charging direct off it, it charges a battery bank
I use Ozzito battery tools and they have this cool little adapter with 2 USB ports on it so you can convert the battery into a power bank. Cheap as chips ($11 from memory). Not sure if the other manufacturers do it.
Edit. Gone up in price I see.
https://www.bunnings.co.nz/ozito-pxc...E&gclsrc=aw.ds
Looks like Makita do them too now.
Anker 21W panel and either Samsung or Anker power bank,
https://www.ebay.com.au/itm/293519999495
Have a small 10w goal zero, says on the back not to charge direct to phone so you'd need to take a battery bank anyway.
The price of mobile fold up solar is about twice that of standard panels for the same wattage (doing a bit of research on off grid and discovering there is no such thing as 'free power from the sun')
And like freezers, bigger is always better for solar panels. Had a guy at work buy something called a solar monkey or similar. Pretty expensive and gave sweet feek all charge.
Note that just because a solar panels says 50 watt or whatever, only means you'll get 50 watt when new, when panel is cold and positioned perpendicular to the suns rays.
In June with fog and then low cloud all day one of my 3 Kw arrays produced...1 Kw for the entire day.
If you are going to rely on say 10 watts of power, go for a 50 watt panel. Then you will always be able to guarantee getting 10 watts.
If you are heading bush for a period based from the ute/truck, consider a roof rack holding a 100 watt panel.
Ha!!!Quote:
Originally Posted by stagstalker
'Massive' and '10 watt' don't really belong in the same sentence. But good on their marketing team:P
Blavor Solar Power Bank is one of the best solar pwer bank. It is durable and long lasting.
However, RAVPower 20000mAh Solar Power Bank is also one of the best choices you can rely on. https://houseandbeyond.org/best-solar-power-bank/ this may help you find some other ideas about solar power banks.
That bit about not charging an expensive device direct off a little portable panel has a bit of merit, as if its a less than ideal day the power output off the charger panel may drop under what the charger circuit in the device requires to run itself and effectively charge itself. Some protection circuits take a dim view of the supply cutting in and out and poo themselves. Damaged charging leads can do the same though to be fair. I blew up a reader thing by that, the replacement parts were more than the replacement cost of the entire thing!
Safer to charge off the battery bank, and then use the portable solar to charge the bank back up. If the panel doesn't want to play and you damage the battery bank it's likely that it's only costing you $40-50 with the current price of battery banks. Also, it's likely to charge the device a lot faster that way as well!
This sounds great Shearer! Would you lug it around the hills or just have in your vehicle? How many charges do you reckon it can do? ThanksQuote:
Originally Posted by Shearer