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Cache battery recommendation

Posted: Wed Mar 24, 2021 1:27 pm
by Swede
I'm sure this question has been asked may times before...

Over the last few months I've been putting together a new dynamo (SON28) based front wheel for the ECR which is now wired up to a K-Lite system (Backpacker Pro & a dual USB charger) but I need a cache battery. I've read that the MI Powerbank Pro 10,000mAh works well but I think it's been discontinued and the Xiaomi website is really confusing! :roll:

Any recommendations?

Re: Cache battery recommendation

Posted: Wed Mar 24, 2021 1:49 pm
by Lazarus
Does it need to be charge through ?
ie it can charge and drain at the same time ?

https://www.mymemory.co.uk/ravpower-2-4 ... black.html


its ony waterproof if you are not using it :roll: once you plug into it the cover is off so it can leak - never had an issue personally but its going to have to be inside a container [dry bag in my case ] of some such

Re: Cache battery recommendation

Posted: Wed Mar 24, 2021 2:27 pm
by Swede
Not sure about through charging but I guess it's a nice to have?

At the rate my iPhone discharges its battery whist running Komoot, I can see a situation where it would need to be recharged during a long day and it would be good to be able to put some power back in at the same time.

Does the RAVPower do through charging?

Re: Cache battery recommendation

Posted: Wed Mar 24, 2021 2:43 pm
by HUX
I use a Mophie powerstation 2x that is pass through. My etrex will run all day off it and at the end of the day its fully charged ready to top my phone or camera up.

Re: Cache battery recommendation

Posted: Wed Mar 24, 2021 3:16 pm
by Bearbonesnorm
I've got a Zendure. I've not broken it. I like it.

Re: Cache battery recommendation

Posted: Wed Mar 24, 2021 3:54 pm
by Lazarus
Does the RAVPower do through charging?
Sorry my bad , should have said, yes it does - 100% as how I use it

Re: Cache battery recommendation

Posted: Wed Mar 24, 2021 5:51 pm
by Swede
Thanks, so the Mophie powerstation 2x is no longer available and if you could let me know which Zendure you were using that would be really helpful.

Any others? There are literally hundred to choose from and I'm exactly sure what works best with the K-Lite USB charger!

Re: Cache battery recommendation

Posted: Wed Mar 24, 2021 6:33 pm
by Bearbonesnorm
if you could let me know which Zendure you were using that would be really helpful.
It's an A2 rated at 6700mAh ... but I perhaps require less charging capacity than most people.

Re: Cache battery recommendation

Posted: Wed Mar 24, 2021 10:52 pm
by BigdummySteve
I’d look for one with a USB C Input, don’t risk a usb input/output however. I had a battery blow up a sinewave beacon with back current. Luckily it was replaced under warranty.
Micro usb input are one of humanity’s greatest mistakes and cause untold misery by breaking leaving your battery or device useless.
Next tip get your shiny new battery and give it a good soaking with a water repellent spray in all the ports, I’ve killed a battery in one trip due to moisture ingress before I started doing this.

As for makes I’ve a portapow which is six years old, Anker are good but reasonably priced.

Re: Cache battery recommendation

Posted: Thu Mar 25, 2021 12:35 am
by ledburner
Lidl & aldi have been very reliable and good value. The last one 5000mah/5ah. Had a digital power, gauge 0-100%. A smaller battery charges quicker and supports fast charging.
Note when using phone to top as, a sat nav. It is constantly Trying to top up battery so drains quicker, than discharging to 30 % then recharging. I don't of pass through woukd be beneficial. (Powers both device d spare power to battery).
Usb c input more durable then USB micro. I alse use magnetic leads & adaptors. So no stain on connections. I use Marjay, the was, a similar thread about changing & power bank this winter.

Re: Cache battery recommendation

Posted: Fri Mar 26, 2021 9:19 pm
by Swede
I have a Lidle(?) 25,000mAh power pack which has a built in solar panel and torch that even flashes SOS :roll:, but it's a brick, so I'm looking for something smaller.

Good call on the magnetic leads!

Re: Cache battery recommendation

Posted: Sat Mar 27, 2021 11:17 am
by redefined_cycles
BigdummySteve wrote: Wed Mar 24, 2021 10:52 pm
Next tip get your shiny new battery and give it a good soaking with a water repellent spray in all the ports, I’ve killed a battery in one trip due to moisture ingress before I started doing this.

.
Steve... will this soaking thing do for your garmin wahoo ports aswell. I always worry of water ingress into the wahoo )not happened yet)... which spray do you use...

Re: Cache battery recommendation

Posted: Sat Mar 27, 2021 12:09 pm
by BigdummySteve
I’d be careful with a garmin as it might affect the screen, I use a silicone spray.

Re: Cache battery recommendation

Posted: Sat Mar 27, 2021 10:53 pm
by Richpips
I've loads of different powerbanks, this Anker is my current go to. It fast charges, (and discharges) via USB-C.

For fast charging you need a special charger (below)

Anker PowerCore Essential 20000 PD Power Bank, 20000mAh USB-C Power Bank with 18W Power Delivery,

Anker Wall Charger USB C, 30W 2-Port Compact USB C Charger with 18W Power Delivery and 12W PowerIQ, PowerPort PD 2

Re: Cache battery recommendation

Posted: Tue Jun 22, 2021 8:24 pm
by numplumz
Can't find a thread in search, please point me in that direction if there is one.
I'm on a trip and smashed my phone, so had to buy another; suddenly I'm thrust into a world of USB-C my always reliable battery pack and amps monitor now shows me its charging at a pathetic 20mA
So is it a fast charge capable power bank only, or is there any kind of cable bodge to fool it.
My dynamo/bat/phone system now boloxed
This is going to prove doubly costly I 🤔 think