Amazon.com: OSTENT 1300mAh 3.7V Li-ion Battery Pack Lithium-ion Rechargeable Replacement for Nintendo Switch Pro Controller : Video Games
G-case: Modular Protective Case for Nintendo Switch & OLED – Plenbo
ElecGear 1 x Ersatz-Akku für Nintendo Switch Konsole, HAC-003, Li-Ion-Akku, intern, wiederaufladbar, für Switch HAC-001, 3,7 V, 4310 mAh, 16,0 Wh, mit Reparaturwerkzeug-Set: Amazon.de: Games
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Nintendo Switch Console Battery: Replacement Part #HAC-003
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Amazon.com: NEWDERY Battery Charger Case for Nintendo Switch Lite 5.5" , Support PD & QC 3.0 Fast Charging, Built-in 10400mAh Portable Backup Charger Station, Battery Charger Pack with Kickstand & Game Card
First test: How long does the Nintendo Switch's battery last? - CNET