A2058 A2059 Battery for Apple Watch Series 4 (40mm/44mm) Replacement
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Models: A2058 (for 40mm) / A2059 (for 44mm).
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Presupuesto: 224.9mAh (A2058) / 291.8mAh (A2059) at nominal 3.81V.
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Component: 0-cycle Tier-1 Li-ion polymer cells with original-grade flex cables.
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Compatibilidad: Drop-in fit for Apple Watch Series 4 models.
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B2B Procurement: Direct factory pricing, rigid QC testing, and flexible minimum orders for repair depots.
Descripción del Producto
The S4 SIP requires specific voltage parameters to function correctly. The A2058 and A2059 are the exact replacement batteries engineered for the 40mm and 44mm Apple Watch Series 4. We utilize Tier-1 lithium-ion polymer chemistry to match the original 224.9mAh and 291.8mAh capacities. Every unit is manufactured strictly to OEM dimensional tolerances, ensuring technicians can install them without chassis force. The built-in flex cable matches original routing paths to prevent micro-tears during assembly. These batteries are directly compatible with Series 4 model numbers A1977, A1978, A2007, and A2008.
Parámetros técnicos
| Technical Parameter | 40mm Specifications | 44mm Specifications |
|---|---|---|
| Número de pieza | A2058 | A2059 |
| Dispositivo de destino | Apple Watch Series 4 (40mm) | Apple Watch Series 4 (44mm) |
| Capacidad nominal | 224.9mAh (0.85Wh) | 291.8mAh (1.11Wh) |
| Voltaje nominal | 3,81 V | 3,81 V |
| Tipo de célula | Li-ion Polymer | Li-ion Polymer |
| BMS Chip | Dual IC Protection | Dual IC Protection |
| Ciclo de vida | 500+ Cycles (>80% retention) | 500+ Cycles (>80% retention) |
¿Necesita un plan de suministro estable? Envíe su lista de modelos, cantidades y destino. Confirmaremos el plazo de entrega, el método de envío y los documentos de cumplimiento antes de realizar el pedido.
Características y ventajas
✅ 🔋 Precise Output Matching
The A2058 delivers 224.9mAh and the A2059 provides 291.8mAh at a stable 3.81V. This ensures the watch CPU receives consistent power, preventing random reboots or rapid voltage drops during high-load tasks like GPS tracking.
✅ ⚙️ Pre-Soldered Flex Connectors
Our batteries feature pre-attached flex cables with reinforced contact pins. This eliminates the need for any micro-soldering during the repair, reducing labor time and standardizing the repair process for your franchise locations.
✅ 🛡️ Integrated TI Protection IC
Battery management is critical in sealed wearables. We integrate Texas Instruments (TI) level protection chips on the BMS board to actively monitor for over-voltage, thermal spikes, and short circuits.
✅ 🏭 Factory-Direct Scalability
We bypass trading companies to supply repair chains directly. You can order small initial test batches to verify cell impedance and capacity on your own testing rigs before transitioning to large-volume, wholesale pallet orders.
Embalaje y entrega
Plazo de entrega y envío
Artículos en stock: Envío en 3 días
Para modelos de reemplazo estándar con inventario disponible.Pedidos de producción en masa: Envío en 7 días.
Para modelos regulares bajo especificaciones confirmadas y requisitos de empaque.Pedidos personalizados: Envío en 15 días.
Para configuración de celda personalizada, tamaño, cable/conector, PCB/BMS, etiquetado o embalaje.
Nota: El tiempo de envío final depende de Cantidad total, complejidad del modelo, requisitos de embalaje y documentos de cumplimiento de envío. Le confirmaremos la fecha estimada de envío (ETD) después de la confirmación del pedido.
Transporte aéreo (urgente, menor volumen)
Transporte marítimo (rentable para graneles)
Ferrocarril / Camión (sujeto a destino)
Canales exprés
Documentos disponibles: UN38.3 / MSDS / Informe de prueba de transporte (si corresponde)
Se pueden organizar embalajes y etiquetado de cajas compatibles según el método de envío elegido.
EXW / FOB / CIF / DDP disponibles
Abastecimiento integral para todo el ecosistema de Apple
Optimice su cadena de suministro. Consolide sus pedidos de baterías para MacBook, iPad, iPhone y Watch en un solo envío para reducir costos logísticos y maximizar sus márgenes de venta al por mayor.
Preguntas frecuentes
Q1: Can I use the A2058 battery in a 44mm Apple Watch Series 4? No. The A2058 physically fits only the 40mm chassis. You must order the A2059 model for the 44mm version to ensure proper fitment and battery capacity.
Q2: How many charge cycles are these batteries rated for? Our Li-ion polymer cells are engineered to maintain at least 80% of their original capacity after 500 complete charge and discharge cycles at standard operating temperatures.
Q3: Are these batteries fully charged before shipping? No. To comply with UN38.3 international air freight regulations, all our batteries are discharged to approximately 30% state of charge (SOC) before leaving the factory.
Q4: Do I need micro-soldering skills to install these? No. Both the A2058 and A2059 come with the factory-style flex cable and connector pre-installed. It is a direct plug-and-play installation for hardware technicians.
Q5: Can we order a small sample batch before buying wholesale? Yes. We encourage repair networks to order initial sample batches. This allows your engineers to verify impedance, capacity, and dimensions before finalizing bulk procurement contracts.
Q6: What is the defect warranty for B2B orders? We offer a 12-month replacement warranty covering manufacturer defects, such as premature voltage drops or BMS failure, ensuring your inventory is protected.
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