Li-ion Battery NCR18650A Battery for Harman Kardon Onyx Studio 1 2 Bluetooth Speaker Li11b001f 3.7V 3400mAh - China Bluetooth Harman Kardon Speaker Battery and Speaker Battery price | Made-in-China.com
Battery suitable for Harman / Kardon Onyx Studio 2 Speakers(2600mAh, 3.7V, Li-Ion) - Electropapa
cellePhone Battery Li-Ion for Harman Kardon Onyx Studio 1 & 2 (replaced LI11B001F) - 2600mAh | cellePhone mobile generation
3000mAh Battery Replacement P954374 for Harman Kardon Onyx Mini Wireless Speaker | eBay