Weijiang Power supplies 一次性鈕扣電池分兩大體系：1.5V 鹼性鈕扣（LR/AG 系列如 LR44/AG13）與 3V 鋰錳鈕扣（CR 系列如 CR2032、CR2025、CR2016、CR1220）。為手錶、遙控器、鑰匙扣、計算器、體溫計、醫療設備、主機板與 IoT/RFID 提供長保存與穩定電壓，有吸塑零售或散裝。
Alkaline vs Lithium Coin Cells
| Series |
Chemistry / Voltage |
Common Cells |
Typical Use |
| LR / AG (alkaline) |
Alkaline, 1.5 V |
LR44/AG13, LR41/AG3, LR1130/AG10 and more |
Calculators, toys, small remotes, glucometers |
| CR (lithium) |
Li-MnO₂, 3 V |
CR2032, CR2025, CR2016, CR1220 |
Key fobs, watches, motherboards, sensors, medical |
Typical Applications
- Watches, clocks and small electronics
- Car remote keys (RKE), key fobs and garage remotes
- Thermometers, glucometers and small medical devices
- Calculators, toys, laser pointers and small remotes
- PC motherboards (CMOS), fitness devices, IoT and RFID tags
Retail, Safety and OEM Supply
Coin cells are available in blister cards, shrink packs and bulk trays, with private-label branding and custom assortments. Child-resistant and compliant retail packaging can be provided, along with CE, RoHS, REACH and MSDS documentation. These are primary cells and must not be recharged. For rechargeable devices, see our NiMH batteries.
Frequently Asked Questions
Q1: Are button/coin cell batteries rechargeable?No. LR alkaline and CR lithium coin cells are primary (disposable) batteries and must not be recharged. Rechargeable devices should use NiMH cells instead.
Q2: What is the difference between CR and LR coin cells?CR cells are 3 V lithium cells with long shelf life for low-drain electronics, while LR cells are 1.5 V alkaline cells used in many small consumer devices.
Q3: How long do coin cells last in storage?Lithium CR coin cells typically store for 7–10 years and alkaline LR cells for several years, depending on storage temperature.
Q4: Can you supply child-safe retail packaging?Yes — we offer blister cards and compliant child-resistant packaging for retail markets, along with custom assortments and private labels.
Q5: Which common sizes are available?Popular lithium sizes include CR2032, CR2025, CR2016 and CR1220; alkaline sizes include LR44/AG13, LR41/AG3 and LR1130/AG10, with other sizes on request.
Q6: What is the MOQ for wholesale or OEM orders?Bulk and blister-pack orders support flexible MOQ with samples available; custom branding and assortments are quoted within 24 hours.
