WEIJIANG original 4/5 AAA Ni-MH rechargeable cylindrical battery, rated capacity 400mAh, nominal voltage 1.2V. Compact size with consistent performance, ideal for space-constrained electronic devices and battery pack assembly.
Featuring low internal resistance, stable discharge platform and over 500 charge-discharge cycles, it maintains reliable power for long-term standby use. Widely applied in miniature electronic instruments, memory backup systems, smart sensors and small medical devices.
All cells pass 100% quality testing before delivery. We provide OEM custom terminal design, capacity matching sorting and bulk wholesale supply, with complete international safety certifications.
| 參數項目 | 規格 |
|---|---|
| 型號 | WJ‑4/5AAA400 |
| 額定電壓 | 每顆 1.2V |
| 額定容量 | 400mAh (Minimum 360mAh) |
| 電芯尺寸 | 4/5AAA 圓柱形 Ni‑MH |
| 尺寸（直徑×高） | Φ10.5mm × 42.0mm |
| 重量 | Approx 8.5g |
| 內阻（1kHz、滿電） | ≤ 75 mΩ |
| IEC 循環壽命 | ≥450 次循環（IEC61951‑2:2017） |
| 最大連續放電電流 | 400mA (1C) |
| 標準充電 | 40mA (0.1C), 16 hours |
| 快充 | 200mA‑400mA with delta‑V charge‑termination control |
| 放電溫度範圍 | -10℃ ~ +55℃ |
| 短期存放溫度（<30 天） | -20℃ ~ +55℃ |
| 截止放電電壓 | 1.0V／顆 |
| 28 天自放電保持率 | ≥60% 容量 @20℃ |
| 認證 | 可提供 PPWR、CE、RoHS、REACH、MSDS 文件 |
We provide OEM & ODM custom assembly service based on WJ‑4/5AAA400 miniature Ni‑MH cells. We support series‑parallel combination, spot‑weld tiny metal tabs, thin flying leads, micro‑connectors and mini plastic housings for ultra‑compact device layout.
4/5AAA 400mAh miniature nickel‑metal hydride cell is 專為 compact low‑power sensors, small household safety and mini portable electronic hardware.
濰江電力是擁有 16 年生產經驗的專業 Ni‑MH 充電電池製造商。廠內可靠性實驗室與自動化生產線可支援大批量訂單與小批量微型 OEM 客製，並為全球客戶備齊出口所需的完整認證文件。
聯絡我們取得批量價、點焊電芯選項、微型 OEM 電池組方案，並下載官方技術規格書。