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A high-quality AP16B4J internal replacement battery designed for Acer devices, especially the Switch Alpha 12, Switch 5, and Switch 7 BE series:
Voltage & Capacity: 7.6 V nominal, offering a robust 4,870 mAh (37 Wh) of power
Chemistry & Protection: Built from Grade A Li‑Polymer cells, featuring smart BMS protection against overcharge, over-discharge, overheating, and short circuits; globally certified (CE/FCC/RoHS)
Compatibility: Fits perfectly into Acer models originally equipped with AP16B4J, 2ICP4/78/104, KT.00204.003, N16P3, N17P5 or KT.00204.005 battery packs; compatible with numerous SA5‑271, SW512‑52, and SW713 variants
Form Factor: OEM-style slim internal pack in black, with precise connector alignment and mounting tabs—plug-and-play replacement
| Battery Type | Li-ion rechargeable battery |
| Battery Voltage | 7.6v |
| Battery Capacity | 4870mah |
| Model | AP16B4J |
| Country of Origin | CHN |