Hi
I´ve been testing Np 1 Lithium Li-ion Ultimate NPLU-84.
14.8 V 84 Wh from Pink Noise.
New battery and fully charge with my old IDX KL-4 charger.
The test was Sound Devices 664 with 2 mic. phantom power ( Schoeps MK 41 and Sennheiser MKH 70). And power for two Audio Limit 2040.
At 8.15 AM I arm four tracks and hit the recorder button . I was recording constantly and stop for lunch12.30 PM where I power down the lot. At 13.10 PM I power up everything and was recording again constantly.
At 17:00 PM I have my first warning for low power. I keep on recording and at 18.20 the SD 664 stop.
Warning low power not able to record. The SD 664 keep the files intact. Very nice.
Note I was recording indoor, 20 Celsius ( 68 F )
I was recording 9 hours and 25 min with one NP1 , two phantom power mic ( 48 V ) and power for two Audio Limit 2040 receiver.
I do find this very good, and looking forward to try them outside in the cold winter time here in Denmark.
ms