Portable Powerbank

idleprocess

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And here come the graphene chargers:

Details are a tad sparse on said brand's website. But if we assume their 5Ah bank has nominal Li-Ion voltage of 3.6 then that's 18Wh, charged 0-100% in 18 minutes is a neat 0.3 hours meaning it nets 60W of draw from the power supply.
 

Hooked on Fenix

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Just got the Nitecore 21700 Intelligent Battery System. It's a compact kit with a magnetic power bank and battery charger, high cri 80 lumen magnetic lantern, and 21700 I series battery. It's hard to beat the compact size of the 2 amp power bank and you can't beat how fast it is to swap out the 5 amp battery. Despite both contacts on one end of the battery, they made it backwards compatible with other lights by having a regular negative terminal on the other end. The 15 amp rated battery works with my E4K and MH10 v2 which are not I series lights. The lantern has no moving parts to wear out (no switch) as it turns on when connected with the battery. For $6 more than a 15 amp rated 5 amp battery with a built in USB port, seems well worth it to get a power bank and lantern as well as a backup battery for a light like the E4K.
 

Poppy

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About September 2020 I bought a LiIon 8000 mAh car battery jump starter, at Costco. It is the Type S brand. It worked fine on my 9 HP lawn mower, but I couldn't test it on my 4.6L 8 cylinder engine (its battery was fine).

After not being used for a month or more, the battery in my car became stone cold dead. I tested this LiIon battery and it cranked the engine as quickly as the new replacement battery did. Despite, not topping the LiIon cell off since I got it, it was still at 100% charge, and after cranking and starting the car's engine, it was still at 95%.

I am pleased to give it a passing grade.

It comes in a convenient zip up container, has a flashlight, and can be used as a power bank.

ACtC-3dZ5jjnoGBtZ7bFcFvNrbiGSvVy7gnKUPqx-ZQXqMtorVbCGJjfNltMtAYE_PaBWjGolJemN7PkZL-NGI8bGjR8jg2bXvka-SAsLr6VxzEsdC_-vC17xFcRvnzlxerk7kDnuJ51nLV9pLW6x1KW-XCd=w617-h789-no
 

ZXD

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That is interesting. I have had good luck with Anker power banks over the years but I have been wanting to get something water resistant/proof and tougher so I don't have to ziplock them when hiking.
 

Lynx_Arc

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I like Anker power banks too but I think water proofing them would not necessarily be a good thing as in charging them pressure could build up and have nowhere to vent plus having rubber caps over all the ports is a mess as often there are 3 ports on larger power banks. What would be nice is custom fitted ziplock type bags that are thicker than food bags.
 

angerdan

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I have been wanting to get something water resistant/proof and tougher so I don't have to ziplock them when hiking.
Nitecore offers an waterproof IP68 2m submersible Powerbank NPB2:
 

orbital

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+

Noticed today there are powerbanks available now w/ Type C outputs of 28V @ 5A = 140W
This new PD 3.1 protocol output is good up to 48V
..that's impressive

5A will always be the max for Type C, so it's all about the voltage
 

Poppy

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I bought this 30,000 mah power bank June of 2022.
I checked amazon to quickly find the link and date when I bought it.
To my surprise it is over stocked and selling 50% off for a mere $12.49

At that price I am very tempted to get another one.
What made me decide on it originally was that it takes three different inputs, USB C, Micro USB, and the Iphone lightening.
Considering that my family has IPhones and that we use iPhone charging cables, it makes sense that we want the ability to recharge the power bank with our iPhone cables.

It does have two drawbacks:
1. it is relatively heavy so if you won't need more than a single recharge of your phone, we would opt for a lower capacity, lower weight one. (If you planned to carry it all day)
2. Its USB C is unidirectional, only input, but not output.
( I bought a few 3amp USB C wall warts, with iPhone cables, those that connect USB C to lightening) They can be used to charge the power bank, but since the power bank doesn't have USB C output, I'd need to pack the standard USB to lightening charging cables.

It does have the advantage of being able to charge all four of our Disney "Magic Bands" at the same time. They come with unique charging cables that require a standard USB slot to plug into.
 

orbital

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hey Poppy (or anyone else)
this unit does 45W input / 65W output (Type C)
with all the coupons is only $30

Have one in use right now :)

 

Poppy

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hey Poppy (or anyone else)
this unit does 45W input / 65W output (Type C)
with all the coupons is only $30

Have one in use right now :)

I don't have a 45 watt power supply, but suppose I could get one, but what can take a 65 watt supply from it? What is the max input to a iPhone?
I think that the max to iPhones, and iPads is 5v 2.1 amps or 10.5 watts.
 

MatthewMurdock

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I've been using Anker for my stuff. PowerCore Fusion 5000. I absolutely love the built in wall prongs to charge it. It came with a small mesh storage bag. There is just enough room for me to coil up 2 USB lightening cable and a USB micro cable along with the powerbank itself.
 

idleprocess

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I've been using Anker for my stuff. PowerCore Fusion 5000.
I hope yours proves more durable than mine. I had a situation where I had to charge-discharge it daily for months on end then used it as a static charger for months. Went to use it as a powerbank one day and the internal cells obligingly crumpled immediately.
 

MatthewMurdock

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I hope yours proves more durable than mine. I had a situation where I had to charge-discharge it daily for months on end then used it as a static charger for months. Went to use it as a powerbank one day and the internal cells obligingly crumpled immediately.
I had mine since 2018 ....Knocking on wood.... Hate that something like that happened.
 

orbital

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I don't have a 45 watt power supply, but suppose I could get one, but what can take a 65 watt supply from it? What is the max input to a iPhone?
I think that the max to iPhones, and iPads is 5v 2.1 amps or 10.5 watts.
+

That's all changing Poppy w/ Type C becoming the charging input for Apple also
Things are going higher voltage.

Meaning, something that took two hours to charge, could easily be 40 minutes soon.
 

Monocrom

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Cheap, generic powerbank that took a ridiculously long time (even by older powerbank standards) to charge up my phone. Put it on a shelf at work where only Security has access. Went missing one day. Found it a year later when a young co-worker left it behind. Didn't confront him on the theft. Had it not been a powerbank that eventually got the job done, I would have tossed that piece of junk in the trash.

Thing is, that night, I took a closer look at it. The outside was fully rubberized. Which was great at first. But now it was not only dirty but sticky too! It's that cheap rubber that breaks down after a few months and feels as though there's a very light coating of dried honey covering the whole thing.

Now I only buy powerbanks that have no rubberized outer coating. Just full-on plastic.
 
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TacGunner above wrote..."I would really like one of the small battery jump packs that doubles as a power bank."

ThruNite made a C2 portable 1x18650 battery charger. It's been discontinued, but several reputable forum supporters still have inventory, at the original price of $20. It takes an 18650 cell, and can operate both as a charger and as a powerbank. (Search "ThruNite C2 Mini 3400 mAh Compact Charger").

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XTAR makes the PB2, a 2x18650 portable battery charger / power bank. Price is $15-25, depending on the seller. Several colors available. The cover lid is magnetic. It stays firmly on until you want to open it.

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Efest makes the Lush Box, also a 2x18650 battery charger / power bank. Price between $15-20, depending on the seller. The cover lid is magnetic. It stays firmly on until you want to open it.

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alpg88

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I have that Efest charger/power bank. pretty good, I also bought a 18650 case for 5 cells with fast charging and wireless charging, looks great on paper, but somehow the power meter seems miscalibrated, when i plug something in it, at first it seems like it discharges slow, and there is plenty of power left, but after around 55% it suddenly drops to 0. I have 2 of them both doing the same thing.
 
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