Recommended BYO USB Power Box

11 posts / 0 new
Last post
Rod911
Offline
Last seen: 11 months 3 weeks ago
Joined: 08/25/2011 - 20:36
Posts: 456
Location: Melbourne
Recommended BYO USB Power Box

After purchasing HKJ’s recommended box years ago, it’s finally falling apart. I’m wondering what’s recommended these days for these type of products?
Thanks.

Edited by: Rod911 on 05/24/2018 - 01:35
Rod911
Offline
Last seen: 11 months 3 weeks ago
Joined: 08/25/2011 - 20:36
Posts: 456
Location: Melbourne

I did check some reviews, and looks like the next latest and greatest are the Tomo M2/M4 boxes. It’s a little bit bigger, but does have a nice LED display.
Any other recommendations?

Yourrid
Yourrid's picture
Offline
Last seen: 2 months 2 weeks ago
Joined: 05/17/2013 - 09:41
Posts: 1068
Location: ATL

Do you need the battery box to open so you can remove the batteries? Or is a sealed box OK?

texas shooter
Offline
Last seen: 6 hours 52 min ago
Joined: 08/26/2012 - 02:14
Posts: 1863
Location: Texas

I got this last year and it works great for me http://www.tomopowerbank.com/shop/epilot-e4/
I also bought a few of these not BYO but near perfect for me needs BlitzWolf PowerStorm BW-PF1.

BlueSwordM
BlueSwordM's picture
Offline
Last seen: 21 min 18 sec ago
Joined: 11/29/2017 - 12:34
Posts: 5612
Location: Canada

I would recommend the XTAR PB2:
http://budgetlightforum.com/node/60425

Looks like an excellent powerbank with no flaws, unlike the Tomo powerbanks.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

Rod911
Offline
Last seen: 11 months 3 weeks ago
Joined: 08/25/2011 - 20:36
Posts: 456
Location: Melbourne

After a box that can use my own cells. I know that these boxes, especially when using 4 cells, can take a while to fully charge. So, if I can remove said cells and charge them separately or use spare cells whilst on the go, it’ll be more useful for me.
The Xtar looks interesting. It does come from a brand I know compared to Tomo. Forgot to mention, it’d be preferable to have 2 USB-A ports as well.

Klotski
Klotski's picture
Offline
Last seen: 1 week 1 day ago
Joined: 08/20/2017 - 23:03
Posts: 292
Location: Minnesota USA

box link gives me error 404? I was curious what was recommended

Rod911
Offline
Last seen: 11 months 3 weeks ago
Joined: 08/25/2011 - 20:36
Posts: 456
Location: Melbourne

The title of HKJ’s review is “USB battery box 4×18650 Huamen/Evertones ET-406”. I’ve always had difficulty in copying links from his website.

Lightbringer
Lightbringer's picture
Offline
Last seen: 5 hours 9 min ago
Joined: 08/30/2016 - 14:12
Posts: 16155
Location: nyc
Rod911 wrote:
The title of HKJ’s review is “USB battery box 4×18650 Huamen/Evertones ET-406”. I’ve always had difficulty in copying links from his website.

tinyurl.com

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

Rod911
Offline
Last seen: 11 months 3 weeks ago
Joined: 08/25/2011 - 20:36
Posts: 456
Location: Melbourne

Thanks. First post edited with the TinyURL version.

Also to note is that the electronics are starting to fail. Previously, I’d be able to charge two devices at the same time. However, over time, I now can only use one USB. Using the two USBs simultaneously resulted in the powerbank to not charge either device. I thought it was due to the cells (Panasonic NCR18650A) getting old, but I have tried my other newer cells and the box still cuts out when trying to charge two devices at the same time.

Danglerb
Offline
Last seen: 1 year 2 months ago
Joined: 10/07/2012 - 04:39
Posts: 600
Location: SoCal

What I’ve seen fail on several of mine are the soldier joints to the plated wires for the battery contacts.

Still a bit dim