Hi, on my battery I've got this little red thing on my plus pole, wonder what it is and what purpose it serves?
No purpose, other than being a connector 🙂
stops you shorting it when not in use! Its easy to put a spanner across them and get some impressive burning smells...
stops you shorting it when not in use! Its easy to put a spanner across them and get some impressive burning smells...
Accidently experienced that... sparks and smoke flying around 😛
Okay then nevermind, still wondering how the battery charger clamp will fit the small metal plates on the battery :S.
Looking at two chargers, can't figure out if there's any major difference between these two? One is much cheaper though.
BLYACK.-LADDARE AL 600 COMPACT2/6/12 V i Conrad online shop
BLYBATTERILADDARE AL600PLUS i Conrad online shop
Not sure which one I should buy, advice is appreciated!
Looking at two chargers, can't figure out if there's any major difference between these two? One is much cheaper though.
BLYACK.-LADDARE AL 600 COMPACT2/6/12 V i Conrad online shop
BLYBATTERILADDARE AL600PLUS i Conrad online shop
Not sure which one I should buy, advice is appreciated!
I think they are pretty similar, but notice that they normally almost cost the same. There's just a sale on the first one you linked to 🙂
You could also get something like this is you intend to use it both in and outdoors.
12V 3A Power Supply CCTV w/ Auto Battery Charger Backup | eBay
12V 3A Power Supply CCTV w/ Auto Battery Charger Backup | eBay
You could also get something like this is you intend to use it both in and outdoors.
12V 3A Power Supply CCTV w/ Auto Battery Charger Backup | eBay
I wouldn't buy that as a substitute for a real charger. But it looks ok as an indoor PSU.
It would take way to long to charge 2*12V 7,2Ah batteries with it, as it can only charge with 0,5A 12V. The batteries have a max charge current of ~7A 12V.
Yeah, but the above listed chargers were also in the 0.6A range. 😀
Personally, I prefer something like this which is also perfectly sized for the electronic compartment at 61x42x121mm.
Lead Acid Smart Charger (3.0 A) for 6V & 12V Lead Acid Battery with 3 stages floating for Worldwide
Personally, I prefer something like this which is also perfectly sized for the electronic compartment at 61x42x121mm.
Lead Acid Smart Charger (3.0 A) for 6V & 12V Lead Acid Battery with 3 stages floating for Worldwide
I've just finished the rebuild of my Boominator and one of the things I learned while at the Roskilde festival was to build your Boominator using philips screws! I used Torx screws for mine in the v1 and when I had to repair it at Roskilde it was a freaking nightmare to remove the cover plate for the electronics compartment. In my v1.5, I've used Philips screws for any place where I might need to get at and then just Torx screws for the speakers and such.
Oh and, does anyone have a fancy guide on how to clean/polish solar panels? My two small ones got a bit dirty and scratched at Roskilde and I could clean them with normal water but how about removing the small scratches?
Oh and, does anyone have a fancy guide on how to clean/polish solar panels? My two small ones got a bit dirty and scratched at Roskilde and I could clean them with normal water but how about removing the small scratches?
The amorph 12v, 650mA type from a lot of pages back. I can't remember exactly, I'll dig up a link.
Solar Cell Huge - 5.2W - Solar - Components - All you need to prototype
Solar Cell Huge - 5.2W - Solar - Components - All you need to prototype
Got a question...duh. What should i do to keep my 2 12v batterys in the best shape over the whinter? The whinter is closing, so i thought i just ask 🙂
Got a question...duh. What should i do to keep my 2 12v batterys in the best shape over the whinter? The whinter is closing, so i thought i just ask 🙂
Disconnect them from the boominator and charge them fully.
Then they can be stored for few months without any care and without being harmed. To be sure you can charge them every 30-60 days or buy a float charger.
A float charger charges the batteries fully and then let power drop to a point where it starts charging them up again.
Hello everybody
I'm making a boombox, got a budget of 1800 dkk, and was wondering if it's even possible. I'm making the box for a group of 16 people.
I already got a tripath class D amp, so the amplifier is not something I'll have to buy.
The box should also be able to play, if not the entire week, then with atmost 2 recharges.
gotta know if i have to make them pay a little more money
I'm making a boombox, got a budget of 1800 dkk, and was wondering if it's even possible. I'm making the box for a group of 16 people.
I already got a tripath class D amp, so the amplifier is not something I'll have to buy.
The box should also be able to play, if not the entire week, then with atmost 2 recharges.
gotta know if i have to make them pay a little more money

Hello everybody
I'm making a boombox, got a budget of 1800 dkk, and was wondering if it's even possible. I'm making the box for a group of 16 people.
I already got a tripath class D amp, so the amplifier is not something I'll have to buy.
The box should also be able to play, if not the entire week, then with atmost 2 recharges.
gotta know if i have to make them pay a little more money![]()
Hey Lars, I'm guessing you are danish on the basis of your name. I'd approximate the price of the boominator build to be around 3000dkr if you do a budget build and dont go all out with materials etc.. The most expensive parts are the HP10w, the wood and the batteries. In your case, you already have an amp, so you'll probably be able to build it for around 2700-2800dkr!
Hey Lars, I'm guessing you are danish on the basis of your name. I'd approximate the price of the boominator build to be around 3000dkr if you do a budget build and dont go all out with materials etc.. The most expensive parts are the HP10w, the wood and the batteries. In your case, you already have an amp, so you'll probably be able to build it for around 2700-2800dkr!
Hey Phaedras
First of all you guessed right 😉 (I guess Jensen gave me away)
I have read through the thread last year and know that i can't build a boominator with that budget, but if I use something not as top quality, would it then be possible? 🙂
And what are the most important things I have to look for when I'm going to look for speakers? 🙂
Hello everybody
I'm making a boombox, got a budget of 1800 dkk, and was wondering if it's even possible. I'm making the box for a group of 16 people.
I already got a tripath class D amp, so the amplifier is not something I'll have to buy.
The box should also be able to play, if not the entire week, then with atmost 2 recharges.
gotta know if i have to make them pay a little more money![]()
You can go with a half-Boomniator perhaps. Or do as Phaedras suggest above and up the budget slightly.
Got a question...duh. What should i do to keep my 2 12v batterys in the best shape over the whinter? The whinter is closing, so i thought i just ask 🙂
Just charge them up fully and then tuck them up in a quiet corner. If you are really paranoid you can then give them a top up charge a couple of months later, if during this you then find they haven't really discharged much at a all in that two months you can leave them until the spring. If you find that in the two months they have run pretty flat you can either keep topping them up every month or so or just throw them away and replace with decent ones.
Basically never let them discharge fully and keep them as close to 100% charge at all times as you can.
You can go with a half-Boomniator perhaps. Or do as Phaedras suggest above and up the budget slightly.
Thanks a million, I guess I'll be demanding a little more money perhaps 😉
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