Battery Testing

garyhgaryh went on a bit of a rant said
0

Before I put my dual battery setup on, I decided to test my batteries today. If I had a group of similar batteries, I'll just pick one up from the group.

My control environment wasn't perfect. When I started, it was not windy, but became windy later on. One of the batteries was charged about 3 weeks ago so not all batteries recently charged.

These are the batteries I tested with my p1.1.1 with 2-axis gimbal holding a gopro hero HD and a boscam 600mw vtx.

  1. stock 2200 mah that came with the p111
  2. stock 2200 mah battery that a friend gave me
  3. Tenergy 2200 mah battery (fully charged 3 weeks ago)
  4. Zippy 2800 mah battery
  5. Multistar 4000mah battery

I started the timer when the quad lifted off and I waited until it landed. If it started to descend and I would force it to ascend until it landed on it's own.

With the 2800mah and 4000mah batteries, the p111 would slowly descend. It seemed too heavy for the quad and I need to set the gain. I basically just let the quad hover.

Now, with the exception of #2, all the runs lasted about 6-7.5 minutes. Very disappointing. #2 lasted 4 minutes (this battery sucks as the last time I ran it I only got 2.5 minutes of runtime). I get exact figures in my next post as I need to get the times off the video.

I believe the reason why I didn't get much runtime out of the 2800mah battery because I fully charged it 3 weeks ago. #3 and #4 pack have never been discharged or run in the phantom (today was the first day).

I've been told to get better runtimes with the higher mah battery back I have to lower my low voltage cutoff limits. On youtube, there is a guy who ran dual multistar 4.0a setup and he ran for 23 minutes running his multistar down to 10.4 volts or so. When I tested all the battery voltage after landing, the multistar had the highest voltage at 11.3 (unloaded). The rest was at 11.1.

With the 2800mah battery, the quad descended fast for no reason and bounced up after hitting the ground (I had no control of it). I have it on video and may post it.

I'll be back with the results.