auraslip
10 MW
- Joined
- Mar 5, 2010
- Messages
- 3,535
For my new build I'm going to be using 12 6s5ah hk lipo packs. Since there has been some really fun fires because of defects, I've decided that I need to do a couple testing cycles before I consider the batteries safe. Rather than use my imax charger which is dreadfully slow at discharging and takes the cells lower than I'd like, I've decided to roll my own.
![](/sphere/proxy.php?image=http%3A%2F%2Fi.imgur.com%2FQUnSel.jpg&hash=f6a1ea3b8a9c5e1ee65eef3364a22b01)
This is the basic idea. Six 12v 50w mr16 bulbs in any series/parallel config I need. (easily accomplished with sexless connects like andersons!)
The amp meter will be replaced with a watts up meter for testing purposes. The cell log will be used with a relay to end the discharge cycle. This is the fool proof part!
Right now I'm having trouble figuring out how to mount the bulbs. I tried hot glue, but it melted. Epoxy would work, but I'd like to be able to replace the bulbs when they burn out.
![](/sphere/proxy.php?image=http%3A%2F%2Fi.imgur.com%2FGJ5C7l.jpg&hash=311299ef2669baea28a2b323eea3b5fd)
I'm thinking it'd be much cooler to mount the bulbs facing down, so that it's easier to reconfig them and so light polluting isn't a problem. However, this poses a fire/overheating risk to what ever surface the discharger sits on. Two 12v fans in series would fit perfectly at the end though. I wonder if this violation of KISS is worth the effort?
![](/sphere/proxy.php?image=http%3A%2F%2Fi.imgur.com%2FQUnSel.jpg&hash=f6a1ea3b8a9c5e1ee65eef3364a22b01)
This is the basic idea. Six 12v 50w mr16 bulbs in any series/parallel config I need. (easily accomplished with sexless connects like andersons!)
The amp meter will be replaced with a watts up meter for testing purposes. The cell log will be used with a relay to end the discharge cycle. This is the fool proof part!
Right now I'm having trouble figuring out how to mount the bulbs. I tried hot glue, but it melted. Epoxy would work, but I'd like to be able to replace the bulbs when they burn out.
![](/sphere/proxy.php?image=http%3A%2F%2Fi.imgur.com%2FGJ5C7l.jpg&hash=311299ef2669baea28a2b323eea3b5fd)
I'm thinking it'd be much cooler to mount the bulbs facing down, so that it's easier to reconfig them and so light polluting isn't a problem. However, this poses a fire/overheating risk to what ever surface the discharger sits on. Two 12v fans in series would fit perfectly at the end though. I wonder if this violation of KISS is worth the effort?