Short answer: the DR-FZ100 will charge any battery built to the NP-FZ100 specification — Sony’s own NP-FZ100, the YO TNP-FZ100, and equivalents from other brands, as long as the outline and contacts match. It will not charge NP-FW50, NP-BX1, NP-FM500H or NP-FV series packs. The slots are molded around the NP-FZ100 outline, so a pack that will not drop in will not charge, and there is no adapter workaround. Below you will find the compatible list, a body-to-battery chart and a few ways to identify what you are holding.
Three kinds of battery it will charge
The first is Sony’s own NP-FZ100, rated 2280mAh / 16.4Wh / 7.2V, which is the main pack across Sony’s current mirrorless bodies and cinema cameras. The second is the YO TNP-FZ100, which carries a USB-C port of its own: it charges in the case the usual way, and it can also be taken out and charged directly. The third covers equivalents from other brands — anything with the same dimensions, latch position and contact layout will seat properly.
The case does not read brands; it reads shape and voltage. That is one practical difference between a dual-slot case and an OEM dock charger: dock chargers can be fussy about third-party packs, whereas a mechanical slot with a general charging circuit only cares whether the battery fits.
Which cameras use NP-FZ100
The table groups bodies by battery specification so you can confirm which group yours belongs to. Sony has run three different battery formats across its lineup, and plenty of people mix them, so the marking inside the battery bay is the most reliable check.
| Battery | Charges in DR-FZ100 | Common bodies |
|---|---|---|
| NP-FZ100 | Yes | A7 III, A7 IV, A7R III/IV/V, A7S III, A9 series, A6600, FX3, FX30 and others |
| NP-FW50 | No | A7, A7 II, A7R II, A7S II, A6000, A6300, A6400, A6500, ZV-E10 and others |
| NP-BX1 | No | RX100 series, RX1 series, ZV-1 and other compacts |
| NP-FM500H | No | A-mount SLT and DSLR bodies such as the A77 II and A99 II |
| NP-FV series | No | Handycam camcorders |
| NP-F series (F750/F970) | No | Large camcorders, monitors and LED lights |
Body lists change as new models appear; the label in the battery bay is the final word. If you are shooting an A7 II or the original A7, that is NP-FW50 territory and out of scope here — this is the single most common mistake, because the model names differ by one digit.
Why the other packs will not fit
The reason is direct: dimensions and contacts do not line up. The NP-FW50 is one size smaller than the NP-FZ100 and drops straight to the bottom of the slot without reaching the contacts. The NP-BX1 is a small block for compact cameras with a completely different outline. The NP-F series is a large brick for camcorders that will not even enter the slot.
People sometimes ask whether an adapter cradle could be made. It is not realistic: an adapter would have to solve mechanical retention, contact routing and charging protocol recognition at once, and would cost more than simply buying the right charger for that pack. NP-F series camcorder batteries also carry far more capacity and higher charging currents than this small case is built to handle.
Another common misunderstanding is that the case can charge a phone. It has no USB output, only battery slots, and does one job. To top up a phone from a battery you want a power bank with reverse output, not this case.
Three quick checks
- Read the printing. The model number is usually on the back of the pack, and on an NP-FZ100 it sits in a consistent position.
- Look at the shape. The NP-FZ100 is a flat block with a curved latch recess along one side, larger and thicker overall than an NP-FW50.
- Check the body. Sony full-frame mirrorless cameras from 2018 onward, APS-C bodies from the A6600 onward, and the FX3/FX30 all take NP-FZ100.
Of the three, reading the printing is the most reliable. If wear has made the label hard to read, seat the pack in a camera and watch whether the battery indicator behaves normally — a pack that will not seat, or reads oddly, is probably not the right model.
Two notes on charging mixed packs
An OEM pack and a third-party pack can sit in the two slots at the same time; each slot is managed independently, and neither affects the other. Their capacity and age differ, so they finish at different times and the green lights come on in a different order. That is normal.
Old and new packs together are also fine, but expect an aged pack to signal full early. If a pack that has been in service for two or three years is always the first to turn green and then runs flat quickly in the camera, its real capacity has clearly dropped. That is a reason to replace the pack, not to doubt the case.
For how to judge pack condition and which signals mean it is time to replace, see the buying notes in the TNP-FZ100 section; operating details for the case itself are in the dual-slot charger section; and the full body-to-battery chart is in the Sony FZ100 battery section.
FAQ
Will it charge any third-party NP-FZ100 pack?
The vast majority, yes. A small number of products add thickness to the shell to make room for a direct-charge port, and those may not seat or may stop the lid closing. Confirming that the outline matches a standard NP-FZ100 before buying is the simplest way around it.
Can an NP-FW50 be modified to fit?
Not advisable. The voltage is in the same 7.2V range, but capacity, charging current and contact definitions all differ, and forcing a conversion brings short-circuit and overcharge risk that is not worth taking.
Will it charge other brands’ camera batteries?
Only if the outline matches the NP-FZ100 exactly. Batteries from other makers such as Canon and Nikon may have similar capacity, but the latch and contacts sit elsewhere, so they will not go in and will not work.
Do the FX3 and FX30 use the same battery?
Yes, both take NP-FZ100 and both charge in the DR-FZ100. These two bodies draw a fair amount of power, so at least three packs in rotation is sensible; the video power article covers how to plan that.