Amazon.com: 3DS XL Battery Pack, 1750mAh Replacement Rechargeable Lithium-ion Battery SPR-003 Compatible with Nintendo 3DS XL/New 3DS XL : Video Games
Replacement Battery Nintendo 3DS XL SPR-003 Battery – Battery World
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Amazon.com: Mars Devices Replacement Battery for Nintendo 3DS and 2DS Original Models : Video Games
Nintendo 3DS Battery Replacement - iFixit Repair Guide
Nintendo 3DS XL Battery Replacement SPR-003 - Walmart.com
Nintendo 3DS CTR-001 MIN-CTR-001 Replacement Battery: BatteryClerk.com