Battery powered LED strip

It would be much easier to just get an SLA, frankly.

Anything based on 9V batteries has to take into account that most of them are 6 AAAA's in series, and those are rated for about 200mAh.

The relevant 12/8 or 12/9 is rated for 8-9000mAh.

Want cheap batteries? Hobby grade Lipos is your source. You'll need a lip charger and will have to read up on charging but you can get a 2200 MAH battery for 20 bucks... and it will dump out 40 amps at a time. Way cheaper then lead acid or gel... and way lighter.

https://www.amazon.com/dp/B00FRF67A0/?tag=controlbooth-20

With all due respect, Footer, 20C discharge is *almost always* a bad thing.

And I like LiFePo4's better for most stuff anyway.

5v USB is simply out of the question. Most power banks will output between 1-2 Amps tops.

Ignoring losses from the dc-dc converter:

12v * 5A = 60W
60W / 5v = 12A

Even if the strips are drawing half of that, that's still 6A, which will shut off and / or melt the battery bank depending on build quality.

Large LiPo or SLA and a buck-boost converter are your friends.

Jay Ashworth said:

With all due respect, Footer, 20C discharge is *almost always* a bad thing.

And I like LiFePo4's better for most stuff anyway.

Click to expand...

.....I own 65-130C ones.... and a lot of them....

But yes, in this end of the world you shouldn't need that much power... they can only supply it for 30-60 seconds max anyway.

**130**C discharge??

Jesus T Murphy and His Travelling Flea Circus...

I mean, with enough cells in parallel, anything is possible...

At that point though, you're more likely to melt the connections!

That gets you *amps* of discharge.

It doesn't change the ratio from Charge current to Discharge current.

Most of my batteries are 1400mah 4S 65C continuous, 130C burst. So, they can lay out 90amps @16v. Granted, you do that for long and the pack will be empty quick.... and will be very hot.

All to power this:


Those motors under full throttle will eat up about 30 amps each....

And there are Graphene batteries out there that are pushing C ratings to 90.

3 bladed props. Interesting...

Something I have used for several shows is a 12v drill battery. I prefer Milwaukee or Bosch lithium ion pod style batteries. For me I already have the screwguns. They last well and are easy to charge. Use a meter to determine polarity and crimp on unshielded spade disconnects to connect the load.

I've used the 12V gel cel batteries for effects several times. I was lucky on the cost ($0) as a friend worked at a vending machine company that replaced the UPS modules whenever the machines were in for servicing. He would scavenge the removed units, which contained 2 - 12V batteries, 95% of which were still good.

As far as connecting them, they typically have spade terminal (http://www.oreillyauto.com/site/c/d....oap?ck=Search_N0214_-1_-1&pt=N0214&ppt=C0189), which slides onto the battery terminal - although measure, as there are 0.187" and 0.250" ones.

If you have a remote for selecting the color/effect, then switching shouldn't be a problem.