Will this work as a "dummy battery" with a reserve charge? I.e. passthrough keeps it topped off at 100%?

Dear Friend, Thanks for inquiry, Sorry, it cannot work as a dummy battery. If you need a dummy battery, we recommend you to see SmallRig dummy battery Asin:B0C85QN1SD, B0C85VJ1BVSincerely, SmallRig Customer Service

Can you charge the battery while its in the camera being used?

Dear Friend, Thanks for inquiry. We don't recommend using it this way. Sincerely, SmallRig Customer Service

do these charge other things via usb? like a powerbank as well?

No, the USB-C port does not output power. In response to your question, I attempted to charge several devices from the USB-C port on the camera battery. I tried this with a USB-C to Lightning cable and a USB-C to USB-C cable. None of those devices began to charge. I verified that these devices all accepted a charge when plugged into power sources with these same cables. The SmallRig battery that I used for this showed a 99% state of charge.

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– SMALLRIG 2400mAh Camera Battery for Sony NP-FZ100 A7 IV, A7C R, A7C II, FX3, FX30, USB-C 2.5H Fast Charging Camera Battery for Sony A7 III, A7C, A7R IV, A7R III, A6700, ZV-E1-4265B

Product ID: 537830151

Details

Battery capacity
2400 Hour
Battery cell composition
Lithium Ion
Brand
SMALLRIG
Number of batteries
1 A batteries
Recommended uses for product
Camera

⚡2400mAh high-capacity power

🔋USB-C fast charging in 2.5h

🛡️Fire-resistant durable casing

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₹ 8623

Duties & taxes included

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Sold byAmazon IndiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Stay powered, stay ahead — never miss the moment!

SEAMLESS COMPATIBILITY - Perfectly fits Sony NP-FZ100 cameras with no annoying warning pop-ups.
BUILT TO LAST PROTECT - Durable, fire-resistant casing with stable voltage output for worry-free performance.
POWER THROUGH YOUR SHOOT - 2400mAh capacity ensures extended shooting without interruptions.
CHARGE AT LIGHTNING SPEED - USB-C fast charging cuts recharge time by up to 65%, so you’re always ready to capture.
VERSATILE CHARGING OPTIONS - Charge anywhere—power bank, car charger, or wall outlet with included USB-C cable.

The SMALLRIG 2400mAh Camera Battery is a high-capacity, rechargeable lithium-ion battery designed for Sony NP-FZ100 compatible cameras. Featuring USB-C fast charging that reduces recharge time by up to 65%, it offers versatile charging options and a durable, fire-resistant casing. Fully decoded for seamless camera integration, it ensures reliable, long-lasting power for professional photography and videography.

Specifications

ASIN	B0C77WS89N
Amperage	6.7 Amps
Antenna Location	Camera
Battery Capacity	2400 Milliampere Hour (mAh)
Battery Cell Type	Lithium Ion
Battery Weight	102 Grams
Best Sellers Rank	55 in Camera Batteries
Brand Name	SMALLRIG
Compatible Phone Models	A7R III, A7S III Camera
Country of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (728)
Item Dimensions	5.2 x 3.9 x 2.3 centimetres
Item Weight	102 Grams
Manufacturer	SMALLRIG
Model Number	NP-FZ100B
Number of Batteries	1 A batteries required. (included)
Product Warranty	1 year manufacturer
Reusability	Rechargeable
Unit Count	1 count
Voltage	7.2 Volts

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