here's another battery test.
Duracell NiMH rechargeable AA's (2650mAH).
using beyerdynamic CK930's, phantom power on, OLED screen at the dimmest setting (which is still plenty bright enough to easily see in the dark), deck set to 24/96.
3 hours, 52 minutes. just shy of 4 hours. 1 hour and 12 minutes longer than my test with regular Energizer Alkalines. that's pretty good, and certainly long enough for a typical 2 set show (though maybe pushing it for an opener + 2 set show).
also, of note is that I was running 24/96 on my PNY 16 gb sdch (class 4), with autosplit off. after the deck died, I had three files, the first two were 3815MB, which in the computer world (of 1024MB = 1GB) is 3.7256 GB, but in the world of 1 GB = 1,000 MB = 1,000,000 KB = 1,000,000,000 Bytes, the comptuer file size of 3815 MB = 4,000,317,440 Bytes. So that's the 4GB limit after which a new file is started. Anyway, a bit of a tangent there. I have two 3815 MB files, and a 27 MB file. It looks like the last file closed properly, and no issues with 24/96 on my PNY card.
I've also decided to organize all of the battery tests into a list with standard info... I went through the previous 25 page thread, and I think I got them all. However, if I missed one of the battery tests, please let me know and I'll add it to the table.
- Battery Type
- Battery Capacity
- PMD-661 Phantom Power
- mics used (current draw per mic)
- run time
- Battery Type = Tekkeon MP3450
- Battery Capacity = 10,000 mAH (5V setting)
- PMD-661 Phantom Power = on
- mics used (current draw per mic) = beyerdynamic ck930 (4.6mA)
- run time (notes) = 15+ hours (3 of 8 lights on the tekkeon power meter still on after 15 hours)
- Battery Type = Energizer MAX alkaline AA's
- Battery Capacity = ??
- PMD-661 Phantom Power = on
- mics used (current draw per mic) = beyerdynamic ck930 (4.6mA)
- run time = 2 hours, 40 minutes
- Battery Type = Duracell NiMH rechargeable AA's
- Battery Capacity = 2,650 mAH
- PMD-661 Phantom Power = on
- mics used (current draw per mic) = beyerdynamic ck930 (4.6mA)
- run time = 3 hours, 52 minutes
- Battery Type = Energizer Lithium AA's
- Battery Capacity = ??
- PMD-661 Phantom Power = on
- mics used (current draw per mic) = AKG 568 (<2mA)
- run time = 8 hours
- Battery Type = Energizer E2 Lithium AA's
- Battery Capacity = ??
- PMD-661 Phantom Power = on
- mics used (current draw per mic) = Schoeps cmc6/mk4 (4mA)
- run time = 5+ hours (3 bars of power on PMD-661 display at end of show)
- Battery Type = Energizer Lithium AA's
- Battery Capacity = ??
- PMD-661 Phantom Power = on
- mics used (current draw per mic) = Sennheiser MKH8040 (3.3mA)
- run time = 8+ hours
- Battery Type = Energizer Lithium AA's
- Battery Capacity = ??
- PMD-661 Phantom Power = on
- mics used (current draw per mic) = Neumann km184 (3.2mA)
- run time = 6.5 hours
- Battery Type = Duracell NiMH rechargeable AA's
- Battery Capacity = 2650 mAH
- PMD-661 Phantom Power = on
- mics used (current draw per mic) = Nevatons (??)
- run time = 4 hours
- Battery Type = Energizer NiMH rechargeable AA's
- Battery Capacity = 2450 mAH
- PMD-661 Phantom Power = on
- mics used (current draw per mic) = Neumann km184 (3.2mA)
- run time = 5 hours
- Battery Type = Energizer NiMH rechargeable AA's
- Battery Capacity = 2450 mAH
- PMD-661 Phantom Power = on
- mics used (current draw per mic) = AKG 568 (<2mA)
- run time = 5 hours, 15 minutes
Alright, so far it looks like the non-rechargeable lithium AA's are better than the NiMH rechargeable AA's. both of which are better than regular alkalines. And going to an external battery solution, very long run times are possible.
Again, if I've missed any battery test reports, please let me know and I'll update this list. Also, I'll try to keep it updated moving forward as more people do battery tests.