A Little Help on Electronics

[Jesuit24]

For my first bucket, I had two 12V fans hooked up to 9V + 2xAA each, a hearing system with 3xAA, a rangefinder kit with a 9V and a wireless reciever for my mic up to 2xAA. Obviously, this got pretty heavy with all those batteries, not to mention a pain in replacing them all.

For my second helmet, I want to eliminate as many of those power sources as possible. I'm getting a self contained RF board so that won't be an issue and I've already got a 12V 1800mAh rechargeable battery. My question is whether I could wire that rechargeable battery to the two fans and the hearing system and keep them powered for at least a six hour troop? Or maybe I'm better off getting two rechargeables/a more powerful battery?

 

[Fett 4 Real]

What I do in my TD is have the battery pack (lithium rechargeable pack) in my backplate. For Boba all my batteries are in the jetpack and I run wires to the places that require power. Like the chest display and speaker and what not. I don't use fans in boba but I do in the TD as it has less of an open area.

 

[Jesuit24]

I'm wanting to keep all my electronics in the helmet so it makes it easier to take it on and off without unhooking a load of couplers. That's why I've got a wireless transmitter in my helmet for the mic so I can permanently attach the mic in the helmet (I got frustrated with constantly knocking the headset every time I put the helmet on). I not sure if I can run my 4.5V hearing system off a 12V rechargeable battery if I'm sharing it with two 12V fans unless resistors get involved.

 

[MythicalFett]

You would need a DC to DC converter to take 12vdc and convert it to 4.5vdc.