Maxell Batteries

About Maxell Batteries

Maxell is a long-established battery brand known for dependable primary cells used in compact devices. The lineup spans lithium coin (CR), silver oxide (SR), alkaline button (LR), zinc‑air hearing aid batteries, and standard alkaline AA/AAA/9V, covering everyday and specialty applications.

Product Range at a Glance

Chemistry	Nominal Voltage	Common Sizes	Best For	Notes
Lithium coin (CR)	3V	CR2032, CR2025, CR2016, CR2450	Key fobs, bike computers, PC motherboards, sensors	High energy density, wide temperature range, long shelf life (often 8–10 years). Not rechargeable.
Silver oxide (SR)	1.55V	SR626SW (377), SR621SW (364), SR920SW (371), SR521SW (379)	Analog watches, instruments	Very stable voltage and better capacity under low drain than alkaline. Ideal for timekeeping.
Alkaline button (LR)	1.5V	LR44 (A76/AG13), LR1130 (189), LR41 (192)	Toys, laser pointers, small lights, test tools	Lower cost; shorter life than SR in watches or steady low-drain devices.
Zinc‑air hearing aid	1.45V	Size 10, 13, 312, 675	Hearing aids	Activated by air when tab is removed; use within weeks once opened.
Alkaline cylindrical	1.5V (9V pack)	AA, AAA, C, D, 9V	Remotes, toys, flashlights	General household power; not interchangeable with button/coin cells.

How to Choose the Right Maxell Cell

1. Match the code printed on your old battery or device manual (e.g., CR2032, SR626SW, LR44).
2. Confirm voltage and chemistry: 3V CR for many electronics; 1.55V SR for watches; 1.5V LR for toys; 1.45V zinc‑air for hearing aids.
3. Check size by diameter × height (e.g., 20 × 3.2 mm for CR2032). Same size codes across brands are physically compatible.
4. Prefer silver oxide (SR) over alkaline (LR) for watches and precise instruments due to flatter discharge.
5. Do not substitute rechargeable coin cells (e.g., LIR/ML) unless your device specifically requires them.

Quick Runtime Expectations (Typical)

• Analog watch with SR626SW (377): about 1–3 years depending on movement and features.
• Key fob with CR2032: roughly 1–3 years with normal use.
• Bike computer with CR2032: about 6–12 months of frequent use.
• Digital caliper with LR44: about 3–6 months of intermittent use.
• Hearing aid size 312: typically 3–10 days after activation, depending on device and volume.

Compatibility and Equivalents

• CR2032: also marked as DL2032, ECR2032, 5004LC. Same size/voltage across brands.
• LR44 (A76/AG13) vs 357/303 (SR44): same size; 357/303 is silver‑oxide with steadier voltage—better for watches and meters.
• SR626SW (377) may also appear as SR66; SR621SW (364) as SR60. Match chemistry and size.
• Zinc‑air hearing aid sizes: 10 (yellow), 13 (orange), 312 (brown), 675 (blue) color codes are standardized.
• Always install coin cells with the “+” side up unless your device specifies otherwise.

When to Choose Maxell

• Use if you need reliable, standards‑compliant cells for watches, key fobs, calculators, and medical sensors.
• Use silver oxide for consistent timekeeping and long life in analog watches.
• Avoid alkaline button cells in precision devices that specify silver oxide.
• Avoid primary CR cells where your device calls for rechargeable LIR/ML coins or a battery pack.

Safety and Storage

• Button/coin cells can be dangerous if swallowed. Keep out of reach of children and pets. Seek immediate medical help if ingested.
• Do not recharge, short‑circuit, crush, or expose primary cells to fire.
• Store in a cool, dry place. Keep in original packaging until use. Avoid mixing old and new cells.
• Recycle where possible. Many retailers accept button cells; follow local regulations.

FAQs

Are Maxell CR2032 batteries rechargeable?

No. CR‑series coin cells are primary (non‑rechargeable). Only use rechargeable coin types (e.g., LIR/ML) if your device specifically requires them.

Can I use LR44 instead of a 357/303 (SR44)?

They are the same size, but 357/303 is silver oxide and holds voltage longer. For watches and meters, use the SR (357/303) the manual specifies.

What is the shelf life of Maxell lithium coin cells?

When stored properly, CR coin cells typically maintain useful capacity for about 8–10 years. Always check the date code and store in a cool, dry place.

How long do zinc‑air hearing aid batteries last?

After the tab is removed, expect roughly 3–10 days depending on size (10 to 675), device power draw, and usage patterns.

How can I dispose of used button cells?

Tape the terminals and bring them to a battery recycling drop‑off (electronics, jewelry, or hearing centers often accept them). Follow local disposal rules.