Reddit reviews TalentCell Rechargeable 12V/11000mAh 9V/14500mAh 5V/26400mAh DC Output Lithium ion Battery Pack for LED Strip and CCTV Camera, Portable Li-ion Power Bank with AC/DC Charger, Black

But why?

You could this so much better with a standard usb battery.

TalentCell Rechargeable 12V 3000mAh Lithium ion Battery Pack for LED Strip, CCTV Camera and More, DC 12V/5V USB Dual Output External Battery Power Bank with Charger, Black https://www.amazon.com/dp/B01M7Z9Z1N/ref=cm_sw_r_cp_api_i_6W6SDbXQGKG8Z

$25 for something simple.

Or if you need a LOT of power,

TalentCell Rechargeable 72W 132WH 12V/11000mAh 9V/14500mAh 5V/26400mAh DC Output Lithium Ion Battery Pack For LED Strip and CCTV Camera, Portable Li-ion Power Bank, Black https://www.amazon.com/dp/B016BJCRUO/ref=cm_sw_r_cp_api_i_RY6SDb975MER2

$65.

Horn + Battery + Switch = Horn on Bike

Hell, you could fit all that into cargo pants and be a pedestrian honking at cars.

Or on kickstarter.

It sounds like managing to keep eight good AA batteries in the thing is the issue. If I might make a suggestion, get yourself one of these rechargeable batteries and use that instead. It has 11Ah of capacity and one of these will run my Celestron CPC 9.25 EdgeHD for almost an entire day. It will come with a cable that should fit your scope; it uses a standard 2.1mm plug. It also comes with the charger to top it off during the day when you're not using it.

I have this attached to the fork arm of my scope and the battery moves with the scope and the wire doesn't wrap around and get pinched this way. It's a very clean approach and will save you having to always worry about AA batteries or extension cords.

Try this one: https://www.amazon.com/TalentCell-Rechargeable-11000mAh-14500mAh-26400mAh/dp/B016BJCRUO

I've taken this beast with me on multiple backpacking adventures. Powers my phone 24/7 for a week easily. Even offers 12v outputs up to 3A for special electronics that might need it.

No need to mess with solar chargers. In my experience, they are all useless. Too slow, too expensive, and too cumbersome. I eventually ditched these solar panel systems in favor of this option. When you are backpacking, you really don't want to dink around with solar; just plug and go devices.

Yeah! Briefly though, I found it a bit too bulky to take on hikes/outside in general, so I pre-ordered a OP-Z for portable use and am keeping the Digitakt/tone pair in my home studio.

This is the bank I opted for since it seemed to be a reliable, cheaper option: https://www.amazon.com/gp/product/B016BJCRUO/ref=oh_aui_search_detailpage?ie=UTF8&th=1 Should last around ~20 hours

Here's a really good thread on Elektronauts if you want to compare some other options for power banks: https://www.elektronauts.com/t/digitakt-external-battery-power-pack-options/39561/175

Good luck!

I purchased some lithium packs that offer 12v 9v and 5v. I use this for my BMPCC OG and Fuji X-T2 external. 5V to 12V takes almost 3x the current at 5V to get the same at 12V due to losses.

Not USB-c but this has been a very handy device for multiple recharges while traveling and powering a portable Lepai music setup. Affordable and 3p3s 18650 internally- https://www.amazon.com/TalentCell-Rechargeable-11000mAh-14500mAh-26400mAh/dp/B016BJCRUO

If i have my math right.

12v DC

10w Draw

.833333 Amps

http://underdogvapes.com/faq#electricity

Something like this should work.

https://www.amazon.com/TalentCell-Rechargeable-11000mAh-14500mAh-26400mAh/dp/B016BJCRUO/ref=sr_1_2?ie=UTF8&qid=1494362105&sr=8-2&keywords=12v+power+pack

Edit: I think it will last you somewhere between 7-13Hours Max at full charge.

Something like this

https://www.amazon.ca/TalentCell-Rechargeable-11000mAh-14500mAh-26400mAh/dp/B016BJCRUO/ref=sr_1_3?gclid=Cj0KCQjwhJrqBRDZARIsALhp1WQQBhZXhL-K4nUA05cIK9N05dnKWfePi4dDN6JCUCthXrSpab7NOBQaAhKCEALw_wcB&hvadid=284210268362&hvdev=c&hvlocphy=9001484&hvnetw=g&hvpos=1t1&hvqmt=b&hvrand=13890626508992761386&hvtargid=kwd-377617364151&hydadcr=1498_9454457&keywords=talentcell&qid=1564964277&s=gateway&sr=8-3

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Then just plug it into the dc port on the f8n?

This looks like a perfect affordable unit. Thanks for the tip. I think I'll go for the bigger version https://www.amazon.com/gp/aw/d/B016BJCRUO/ref=pd_aw_sim_469_1?ie=UTF8&psc=1&refRID=0K6QXK18B0T1D250MEN8&dpPl=1&dpID=71ZoNiypMcL

I've had good experiences with these off-the-shelf packs:

https://www.amazon.com/gp/product/B00935L44E/
https://www.amazon.com/gp/product/B00XMM4ZZE/

This one isn't regulated but works fairly well with some loss of sync range as the battery depletes:

https://www.amazon.com/gp/product/B016BJCRUO/

Many similar ones are suitable. Better to use regulated ones than simple "12V" battery packs, which are typically 12.3-12.6 V fully charged and drop off as the batteries discharge. The slightly higher voltage is fine, as is the drop towards 9 Volt, but their management ICs will normally cut off the load before the cells might be damaged by excessive discharge. The low voltage cut-out in the base will turn off the base station before it might get confused by too low a voltage if the battery pack is unprotected - such as with primary cell holders.

Looks like that one is not 12 volts, but 5 volts only. This one might be better.

I'm using these batteries.

They've had no trouble running all the lights so far. I'm running just 192 addressable led pixels, they run at 5V. Even if they only work for 1 hour, that should be fine for most performances I have in mind.

Do you work with Lightjams? Do you think it's worth the investment for the license? I am about to get it, just wondering your experience.

Thanks :)

You could write sequences easily enough, and in fact it would be relatively trivial to fire them off spontaneously with simple pushbuttons as input to your microcontroller. When I put that costume together, I wore a little custom switchboard like a watch that had the arduino installed on it along with a series of pushbuttons and rocker switches to turn things on and off.


Syncing to music directly might be tough - certainly doable, but it may just be easier to have buttons which perform preprogrammed actions. There are a lot of ways things could go awry when trying to line up audio with circuits. For professional shows it's better to have an engineer or two (on further viewing, it looks like they had 3 guys manning this in the show) on the sidelines controlling all that stuff, but if it's just you a simpler and more adaptable route might be to program 8 or so actions, wire buttons from the arduino to your fingertips to fire them off, and rely on your own timing and coordination to get things really moving. Just a suggestion to avoid overcomplicating things, and using such a technique also allows you to be a bit more adaptable (say, for example, if you want to use the surrounding music like at a club as opposed to needing your own).


Also /u/Tinkrr2 is right about the voltage requirements varying by brand - make sure you look into that. Finally, if you're looking to make this into a semi-permanent hobby then it helps to have an adjustable power supply handy. A beefy battery, a sizable power supply, a few barrel jacks, some Dupont connectors, and most importantly an adjustable buck converter will take you very far. I wouldn't worry too much about any of this now, but if you decide you like tinkering with electronics (especially LEDs, which have moderate power requirements) that would be a terrific start.

For a bit more you can pick up a 103.5WH pack.

https://www.amazon.com/TalentCell-Rechargeable-11000mAh-14500mAh-26400mAh/dp/B016BJCRUO/

I personally tore one apart and tested it, it's good to go.

I've worked with enough electricity that I would really rather not make my own. That being said, plans exist, and I've seen a few folks at our observatory with some -very- nice ones. These also exist, which have been recommended to me before, keep meaning to order one actually...

this might be what you are looking for. It might be slightly underpowered for your application.

You should measure the resistance of your jacket with a multimeter. Better would be to measure the current running through your vest during usage as heating the wire changes the resistance.

> Battery Tender

Sorry, I don't know what a Battery Tender is. Is it a brand-name?

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Well it wouldn't be easy to achieve, but I don't know of any product available that would have such functionality.

For starters I would check out some kind of 12V power bank.

Bought one of these: http://www.amazon.com/TalentCell-Rechargeable-11000mAh-14500mAh-26400mAh/dp/B016BJCRUO/ref=sr_1_2?ie=UTF8&qid=1459270990&sr=8-2&keywords=talentcell and tried running the Nova Drive off the 12v out and it works perfectly! Nova Drive still isn't working off the 12v wall wart that I have, so it's finnicky, but it's works on the board, and that battery has TONS of juice and 9v out to power the rest of the board.

I've loved using these TalentCell power banks. Camera runs for a 6-8hr shoot on one.

https://www.amazon.com/gp/product/B016BJCRUO/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B01337QXMA/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Just need to get inventive with the rigging. I use a clamp meant to hold a camera to a rod/pole:

https://www.amazon.com/UTEBIT-Adjustable-Adapter-Aluminum-Photography/dp/B06XNQ8G77/ref=sr_1_9?keywords=clamp+mount+camera+pole&qid=1568172379&s=electronics&sr=1-9

I use this Lithium battery pack from Talent Cell, it has worked great for 3 months so far. I keep it charged up and then just grab it when I'm headed out to my patio or out of the car. I made a quick adapter cable to run from the 12V 6A out to the T-style power connector for my radio. the beauty is that you can also use the 9V out or the USB for 5V if you need a different voltage.

https://www.amazon.com/TalentCell-Rechargeable-11000mAh-20000mAh-Portable/dp/B016BJCRUO/ref=sr_1_3?s=electronics&ie=UTF8&qid=1540897311&sr=1-3&keywords=talentcell&th=1