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PANASONIC
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Panasonic: understand the range before choosing
Panasonic Energy manufactures primary batteries across several chemistries and formats. The current AutoMotoPart range contains four Alkaline Power sizes—AAA, C, D and 9 V—two 3 V cylindrical lithium codes, CR123A and CR2, and one 3 V lithium coin cell, CR2354. All are disposable primary batteries, but their voltage, dimensions, terminals and safety risks are not interchangeable.
AutoMotoPart currently lists 7 Panasonic items. The largest Panasonic groups are 7 primary-battery entries. Panasonic totals can change, so a category count is orientation rather than proof that a particular reference suits a vehicle, workplace or job. The exact Panasonic listing, its current technical information and the item in front of you must agree.
What the Panasonic page actually covers
| Product group in this range | Current entries | Selection focus |
|---|---|---|
| Alkaline and primary lithium batteries | 7 | Match exact IEC/product code, chemistry, voltage, dimensions, terminal/polarity, device load/temperature, pack count, primary-only status and child/short-circuit controls. |
Seven entries cover four alkaline formats and three lithium codes. The alkaline group accounts for AAA, C, D and 9 V; cylindrical lithium accounts for CR123A and CR2 boxes of ten; coin lithium is CR2354. Four titles say Alkaline Power and three say lithium, but only the full code proves the required dimensions and voltage.
Build a reliable shortlist
Open the device manual and inspect the battery compartment before ordering. Record every character on the old cell without relying on a seller's application title. Check contacts for corrosion, damage or previous leakage and confirm the compartment and cover can securely retain the specified battery.
| Check | Why it matters | Useful evidence |
|---|---|---|
| Code | CR2, CR123A, CR2354, LR03, LR14, LR20 and 6LR61 are physically/electrically distinct | Device manual, compartment label and cell marking |
| Chemistry | Alkaline and lithium primary cells have different voltage and discharge behaviour | Exact specified chemistry; no rechargeable substitution |
| Voltage | A similar shape with a different nominal voltage can damage or misoperate equipment | Device requirement and complete code |
| Dimensions/terminal | Diameter, length, height and snap/button terminals control contact and retention | Panasonic drawing and compartment geometry |
| Set condition | Mixed age, brand or state can reverse or over-discharge a weaker cell | Matched new set and installation date |
| Safety | Loose cells can be swallowed or short against keys, coins and one another | Child-secure storage, divided packaging and recycling container |
If the device title and old battery disagree, stop and obtain the manufacturer's current instruction. Never bend a contact, add foil, stack coin cells or force a shorter cylindrical battery to make a different code fit.
Alkaline Power: LR03, LR14, LR20 and 6LR61
The AAA pack corresponds to LR03, the C pack to LR14, the D pack to LR20 and the rectangular 9 V battery to 6LR61. AAA, C and D are nominal 1.5 V individual cells, while 6LR61 provides nominal 9 V through a snap terminal. The larger shape does not simply mean a safe high-power substitute; the device controls permitted size and load.
Install with the device off, observing every polarity symbol. Do not mix a partly used cell with a new one or combine alkaline with zinc-carbon, lithium or rechargeable chemistry. The adjacent 9 V terminals are particularly easy to bridge with metal, so keep the protective packaging until installation and isolate terminals for collection as the recycling scheme directs.
CR123A and CR2 cylindrical lithium
Panasonic's current CR123A data identifies a 3 V cylindrical primary lithium cell about 17.0 mm diameter and 34.5 mm high. CR2 is also 3 V but official data gives 15.6 mm diameter and 27 mm height. Their codes, dimensions and capacity differ, so neither should be padded, stacked or forced into a compartment intended for the other.
Boxes of ten increase the need for divided storage. Panasonic warns that jumbling lithium cells so their terminals contact one another or metal can cause external short circuits, heat, fire or explosion. Keep them in original trays, away from tools, keys and loose hardware. Do not recharge, disassemble, deform, solder directly, incinerate or expose them to water or excessive heat.
CR2354 coin-cell identity and fit
CR2354 means a specific coin-cell geometry, not any 3 V coin battery. Panasonic publishes 23.0 mm diameter, 5.4 mm height, nominal 3 V and 560 mAh for its current standard cell. CR2032, CR2330 and other codes differ in diameter, height or capacity and are not interchangeable simply because they can touch the contacts.
The live listing associates CR2354 with Tesla Model X, but key designs and years can change. Open only the exact fob procedure, note polarity and avoid damaging clips or seals. Use one cell, never stacked cells, unless the device explicitly specifies otherwise. After fitting, close the compartment fully and account for the removed cell immediately.
Coin-cell ingestion is an emergency
Panasonic's CR2354 page warns that serious harm can occur in as little as two hours after swallowing. UK product-safety guidance explains that coin batteries can react with saliva when lodged in the throat and cause severe internal burns. Flat cells remain dangerous. Store every spare and removed cell securely out of sight and reach, not loose in drawers, bags or on worktops.
If a child or adult may have swallowed a coin or button battery, do not wait for symptoms. UK guidance says to go straight to the nearest A&E department or call 999 for an ambulance, taking the battery packaging or device if available. Do not make the person vomit and do not give food or drink. A battery inserted into an ear or nose also requires urgent medical assessment.
Leakage, storage, transport and recycling
Inspect every cell for swelling, corrosion, denting, damaged wrap or leakage before use. Do not touch leaked material with bare skin. Isolate the device and use gloves/eye protection and cleanup instructions from the Panasonic safety document; seek medical attention for exposure as directed. Never reuse a cell from a contaminated compartment until the device has been assessed.
Store in a cool, dry place away from sunlight, condensation, fire and children, with terminals separated. Do not carry loose batteries in pockets or mixed toolboxes. Use a dedicated non-conductive collection container and follow the recycler's terminal-protection rules. Do not place batteries in general waste, crush them or burn them; retain code/chemistry separation where the collection scheme requires it.
From identification to a checked result
| Stage | Good practice for this range | Mistake to avoid |
|---|---|---|
| Identify | Read complete code, chemistry, voltage and device manual | Choosing a cell because its shape appears close |
| Inspect | Check compartment, contacts, old cell and child-secure closure | Installing into corroded contacts or a broken cover |
| Prepare | Use a matched new set and keep loose cells divided from metal | Mixing old/new, brands, chemistry or charge states |
| Install | Switch off, observe polarity and close the compartment securely | Forcing, stacking, padding or bending contacts |
| Remove/recycle | Account for used cells and isolate terminals by scheme rules | Leaving a flat coin cell loose or jumbling batteries |
Record the Panasonic code and installation date for maintained equipment. For devices accessible to children, include a battery-compartment closure check. Never leave the removed CR2354 beside the work while testing the replacement.
Reading real Panasonic references
The Panasonic names below are examples from the current range and show why the complete description matters. They are not universal Panasonic recommendations and should not be treated as a fitment list. Within Panasonic, a shared family word can conceal a different dimension, connector, material, pack format, operating condition or installation side.
| Example listing | What to verify beyond the name |
|---|---|
| CR123A 3V Lithium Battery - Box of 10 | CR123A 3 V, 17.0 x 34.5 mm, primary lithium, box 10 and device load |
| CR2 3V Lithium Battery - Box of 10 | CR2 3 V, 15.6 x 27 mm, primary lithium, box 10 and exact compartment |
| Alkaline Power 9V Battery | 6LR61 9 V alkaline, snap terminals, single pack and short protection |
| Panasonic CR2354 3V Lithium Coin Cells Battery for Tesla Model X | CR2354 3 V, 23.0 x 5.4 mm, child-secure fob fit and immediate old-cell control |
| Alkaline Power D Batteries - Pack of 2 | LR20 D, 1.5 V alkaline, pair, polarity and matched replacement |
| Alkaline Power C Batteries - Pack of 2 | LR14 C, 1.5 V alkaline, pair, compartment size and matched replacement |
| Alkaline Power AAA Batteries - Pack of 4 | LR03 AAA, 1.5 V alkaline, pack four, set quantity and polarity |
Preserve CR123A, CR2, CR2354, 6LR61, LR20, LR14 or LR03 in the order record. ‘Panasonic 3 V lithium’ or ‘Alkaline Power’ is incomplete because several incompatible forms share that chemistry or range name.
Common errors around Panasonic products
- Substituting CR2, CR123A or CR2354 because all are labelled 3 V lithium.
- Treating the Tesla Model X wording as fitment for every key design or year.
- Replacing alkaline primary cells with rechargeable cells of another voltage/chemistry by assumption.
- Mixing old and new batteries, brands, chemistries or charge states in one device.
- Storing loose cells where terminals contact coins, keys, tools or other batteries.
- Leaving new or used CR2354 cells accessible to children or pets.
- Waiting for symptoms after suspected coin-cell ingestion or inducing vomiting.
- Recharging, soldering, crushing, heating, burning or disassembling primary cells.
Panasonic questions and answers
Q: What Panasonic batteries are listed here?
A: Alkaline AAA, C, D and 9 V plus CR123A/CR2 cylindrical lithium and CR2354 coin lithium.
Q: Are these rechargeable?
A: No. The listed alkaline and CR lithium products are primary batteries and must not be recharged.
Q: Are CR123A and CR2 interchangeable?
A: No. Both are 3 V, but their official dimensions and capacities differ.
Q: Can CR2354 replace CR2032?
A: No assumption is safe; the code specifies different dimensions, and the device must call for CR2354.
Q: Will CR2354 fit every Tesla Model X key?
A: Verify the exact key-fob manual and installed-cell marking for the vehicle/key version.
Q: What is the alkaline AAA code?
A: LR03 is the corresponding IEC alkaline size for the listed AAA product.
Q: What are the C and D alkaline codes?
A: LR14 is C and LR20 is D; confirm the device marking and quantity.
Q: What is the 9 V alkaline code?
A: 6LR61, with adjacent snap terminals that must be protected from metal contact.
Q: Can old and new batteries be mixed?
A: No. Use the matched set required by the device and do not mix brands, chemistries or charge states.
Q: What should I do if a coin cell is swallowed?
A: Treat it as an emergency: go immediately to A&E or call 999, do not induce vomiting or give food/drink, and take packaging if possible.
Q: Can used batteries be carried loose for recycling?
A: No. Keep terminals separated/protected according to the collection scheme and use a non-conductive container.
Q: What should I do with a leaking cell?
A: Isolate it, avoid bare-skin contact and follow Panasonic exposure/cleanup guidance with appropriate gloves and eye protection.