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Extending the New 3DS Battery Life
Cradled by inadequacy: the 3DS battery put to the test | Ars Technica
Long Life 1650mAh Extended Slim Battery for Nintendo 3DS CTR-001 Game Console | eBay
Nyko Power Pak+ doubles 3DS battery life – Destructoid
Amazon.com: TQTHL 3DS Battery Pack [2000mAh] (2023 New Upgraded),CTR-003 Battery Replacement Compatible with Nintendo 3DS N3DS CTR-001 MIN-CTR-001 Gaming Console with Tool Kit : Video Games
3DS Battery Tests - Feature - Nintendo World Report
This battery lasted me 9 years, starting 2012. Thank you for your service. : r/3DS