Yes, there is warranty cover, though the term and scope follow the conditions stated on the product page and on your order, and those can differ by channel and by SKU. Spending a minute checking before you buy saves far more time than arguing later. Most camera battery disputes come down to three questions: does capacity loss count as a defect, is swelling covered, and is a non-genuine battery message a fault. Settle those three first and returns go much more smoothly.
What warranty usually covers
Batteries are consumables. In the trade, coverage commonly looks like this — though the terms you bought under are what count:
- Functional failure: will not charge, will not be recognized, charge level jumping around. These normally fall within warranty.
- Non-user-caused build defects: cracked shell, broken latch, loose contact, provided there is no sign of external damage.
- Early capacity well below spec: if measured capacity is far off the label early on, run the checks in how to spot inflated capacity claims before contacting support.
- Swelling: something to take seriously. Stop using the pack and contact support; the handling sequence is in the battery swelling and error code FAQ.
What is normally excluded
- Normal wear: lithium cells commonly hold around 80% of capacity after 300–500 cycles. Shorter runtime after a year is expected, not a defect. Around the two-year mark is a common point to think about replacement.
- User-caused damage: drops, water, opening the pack, puncturing the shell.
- Damage from mismatched charging equipment.
- Claims past the warranty term, or orders without proof of purchase.
Four steps through a return
Step 1: rule out the environment first
If the camera reports it cannot recognize the battery, power down, remove the pack and wipe the contacts with a dry soft cloth. Confirm you have an NP-FZ100 and not an NP-FW50 — the A6400, A6500 and A7 II series use the latter. A large share of reported faults turn out to be dirty contacts or the wrong model.
Step 2: decide whether it is just a compatibility notice
Some Sony bodies display a message that remaining charge may not be shown accurately. That is common and you can keep shooting; it is not grounds for a return. The messages that need action are “cannot recognize” or “cannot use”.
Step 3: assemble proof and a clear description
Keep the order number, purchase date, packaging and the markings on the pack itself. Add your body model, roughly which firmware version, what you were doing when it happened, and photos. The more complete the file, the faster support can judge it. A short note on when the symptom first appeared is often the detail that separates a defect from normal wear.
Step 4: submit through the channel listed on the product page
Find the support entry on the product or order page, submit there, and follow the instructions for return or extra documentation. Where safety is involved, such as a swollen pack, do not just post it off — contact support first to agree on handling. Photograph the pack and its markings before you send anything, since those markings are usually how support identifies the batch.
Four things to confirm before ordering
- Warranty length and start date: from delivery, or from first use?
- Whether no-reason returns are offered, the time limit, and how resale condition is judged.
- Who carries the warranty: brand, storefront or a third party — and is there a contactable address?
- Terms for bulk orders: with larger quantities, agree at quote stage how defective units are handled and how fast replacements ship. The wholesale inquiry page outlines this.
If your concern is compatibility, read how the chip and charge display work first to see whether your body’s message is normal. It saves an unnecessary return.
One more thing worth knowing before you need it: warranty terms for consumables are usually narrower than for a camera body, because capacity loss over time is expected rather than defective. That is not a loophole so much as the nature of the product. Reading the clause once, at purchase, sets your expectations correctly and makes any later conversation much shorter.
FAQ
Runtime dropped after six months. Can I exchange it?
That is likely normal wear. Cells commonly sit near 80% capacity after 300–500 cycles, and replacing around the two-year mark is a common pattern.
Is a compatibility warning a defect?
A message about charge display accuracy is common and shooting can continue. “Cannot recognize” or “cannot use” needs investigation: clean contacts, confirm the model, then contact support.
Can I still claim without the original packaging?
It depends on the channel’s terms. At minimum keep your order details and the markings on the pack, and hold onto the packaging for a while.
How are defective units handled on wholesale orders?
Agree the defective-unit handling and replacement lead time with support at quote stage. Orders of 100 units or more can go through the wholesale inquiry page, where the handling terms are usually agreed in writing alongside pricing.
Factoring support terms into the decision usually beats chasing the lowest price. The YO NP-FZ100 compatible battery (2280mAh / about 16.4Wh, around $17.89) and the TNP-FZ100 (2400mAh / about 17.3Wh) both state their support terms on the product page, so check before ordering. The two-battery kit at around $36.74 sets you up in one go. Studios, rental houses and resellers should use the wholesale inquiry page, where support terms can be agreed alongside pricing.