Battery specifications:
 
This battery has the pins with diameter about 0,6mm and this diameter is standard for all holes in PCB. You can put pin to hole and then you can solder this pin around hole.
 
Nominal Voltage : 3.7V
Capacity : 850mAh
Lowest Discharge Voltage : 2.50V
Standard Charge : CC/CV ( max. charging rate 4.2A )
Charging Cycles : > 500 cycles (+80% after 500 cycles)
Operating Discharge Temperature : -10 - 60 Degree Celsius
 
Toothbrushes compatibility:
 
This is replacement battery for Sonicare toothbrushes FlexCare, FlexCare+, FlexCare Platinum, DiamondClean, EasyClean, HealthyWhite, ProtectiveClean, Sonicare For Kids, 3 series, 5 series and others. Batteries are also compatible with Li-ion for toothbrushes Braun Oral-B series Genius 8000, Genius 9000, Smart 6 and Smart 6000 ( type 3765).
 
You can found your model there and change the battery:
 
HX9300 series - HX9310, HX9330, HX9340, HX9350, HX9360, HX9370, HX9390, HX9333, HX9343, HX9383
HX8900 Series: HX8910/HX8920/HX8911/HX8962
HX9900 Series: HX992x/HX993x/HX9957/HX9957/HX9903/HX9924/HX9954/HX9984
 
HX6800 series - HX680A, HX6817/HX681x/HX682x/HX683x/HX684x/HX685x/HX686p
HX6900 series - HX6910, HX6920, HX6930, HX6950, HX6960, HX6970
HX6700 series - HX6710, HX6711, HX6720, HX6730, HX6750, HX6760, HX6780
HX6500 series - HX6510, HX6511, HX6530
HX6300 series - HX6310, HX6311, HX6320, HX6330, HX6380,HX6340
HX number is marked on the bottom of your toothbrush handle. If your handle shows the number is HX6530, it belongs to the HX6500 series
Do not use for PowerUp HX3110, CleanCare, Elite, Essence, Extreme and Xtreme toothbrushes.
 
Package includes: 1x Replacement battery with top label