JVC combines Anton Bauer’s Digital 90 battery and Tandem-70 charger/power supply as a fitting power package for the JVC ProHD GY-HM700 and GY-HM800 Series camcorders. The Gold-Mount Digital 90 offers a 93Wh capacity, and the Tandem-70, featuring a 3-prong AC socket, can be used as both a one-position charger or camera-mounted AC adapter.
The Anton Bauer Digital 90 Gold Mount Battery (14.4V, 93 Wh), along with the rest of the Digital Battery Series, represents a major makeover for Anton Bauer, featuring a redesign in several aspects over previous series. The result is a long-lasting, sleek and ergonomic, smart, and safe series of batteries, projected for 1000 charge/discharge cycles. The Digital 90 runs on lithium-ion Sanyo cells which Anton Bauer has found to be highly reliable for them in the past. One of the major changes is a reconstruction of the honeycomb interior, built very spacious and housing the cells physically separated from one another, each individually wrapped in its own plastic case and isolated from the others. This ensures that any potential damage to one cell will have no effect on the others, huge for safety. The additional space in the honeycomb also serves to allow more airflow between the cells, effecting more heat dissipation, which will keep the cells cooler and protect them from aging faster.
As another safety precaution, for instances of above average weather conditions, multiple sensors are built in that detect when the battery is too hot or too cold and trigger a shut down until the temperature is back to normal, at which point the battery automatically turns back on. Designed to the demands of broadcast and cinema digital cameras, the Digital Battery Series employs an algorithm that addresses the issue of “ringing” common to digital cameras. Where batteries are commonly susceptible to sporadic bursts of excess power draw, similar to how a car eats up more gas when the gas pedal is hit too hard, this algorithm smoothes out the power draw, in turn affording longer lasting, more predictable runs with a particular camera and overall longer life.
The Digital Battery Series is compatible with the concurrently released Performance Series of chargers and with all previous Anton Bauer chargers. Used with any of these chargers, via a feature that has become common to the Anton Bauer name, the Digital 90 exchanges certain digital data with the charger that allows the selection of the best charge routine possible for the battery’s cell chemistry, maximizing overall life. Via another familiar Anton Bauer feature, the Digital 90 applies a continuous and constant calibration that enables it to provide more and more accurate capacity and run-time calculations over the life of the battery. Run-time is usefully reported in hours and minutes on an easy-to-read LCD when power is being drawn, and as a percentage value when no load is attached. The reporting in hours and minutes will only get more and more precise with each use as a result of the constant calibration feature.
The aesthetics have also taken a redesign, with the body shaped ergonomically for a comfortable hold and modern look, and the outer jacket made of rubber that provides a good grip as well as a cushion against accidental drops. The case is made of high-impact polymer, which is the same material used in motorcycle helmets. A P-Tap output is available for powering accessories.
Anton Bauer’s Tandem-70 offers a new approach to portable power. It combines all the functionality of a one position InterActive® charger with the convenience of a noise free camera mounted wide range AC Mains Adapter. The Tandem-70 will power even the most power hungry high definition camera from any worldwide AC source. It also doubles as a full function InterActive Charger charging any Anton Bauer Gold Mount battery in two hours or less. Weighing only one pound (450g) the Tandem-70 is the perfect addition to any field camera as a lightweight mains adapter and/or as a high performance charger. Meets all applicable regulatory requirements including CE and FCC.
|Mount / Series Type||Gold Mount|
|Capacity (Wh)||93 Wh|
|Amp-Hours||Not Specified by Manufacturer|
|Output Voltage||14.4 VDC|
|Maximum Load||10 A|
|Accessory Port||1 x D-Tap|
|Dimensions (W x H x D)||2.7 x 6.5 x 4.4″ / 69.0 x 165.0 x 112.0 mm|
|Weight||2 lbs / 0.90 kg|
|Box Dimensions (LxWxH)||9.2 x 7.6 x 7.6″|
|Dimensions||6 × 13 × 18 in|