The Sony BP-U70 is a high-performance, rechargeable lithium-ion battery offering 72Wh.
It is compatible with selected Sony cameras including PXW-FS7M2, PXW-FS7 and PXW-FS5M2.
It's used with the optional BC-U1A/U2A charger for a charging time of 150 minutes.
The handy 4-LED system displays the remaining battery capacity at 20, 40, 60 and 80% so that you never accidentally run out of power.