Sony NH-10WM Ni-MH Rechargeable Gumstick Battery

Genuine Sony NH-10WM Ni-MH rechargeable gumstick battery. Quantity 1. Used.
** No other items or accessories are included in the sale **

Summary:
Good condition.
Capable of around 8.5 hours of continuous playback (dependent on multiple parameters). See detail below.
Genuine Sony rechargeable gumstick battery for use in compatible devices such as portable MiniDisc players/recorders.

Product Condition (Appearance):
No callouts. 

Product Condition (Functionality):
Battery Test Results -
Charged 764 mAh
Discharged 710 mAh
Based on previous data, this battery is capable of delivering over 8.5 hours of continuous playback. 
This is based on testing using a Sony MZ-EH50 MiniDisc player, with inline remote control and earphones connected. Volume was set at around 50%. Playback was in SP mode (highest sound quality, and highest battery load).

Specifications:
Nickel-metal hydride battery (Ni-MH)
900 mAh (MIN)
1.2 V

Note:
These batteries were manufactured around twenty years ago. When managed correctly they should continue to be functional, but this cannot be guaranteed.
Regular use of the battery is recommended for best results. 
Avoid discharging the battery completely, and recharge the battery when there is a small amount of charge remaining. In the case of portable MiniDisc devices, this is usually indicated by a flashing operation light, or flashing battery indicator on the inline remote control.
Aim to charge to around 40% of battery capacity if there are no plans to use the battery for some time. Avoid leaving fully charged without using as this will negatively affect the lifespan of the battery.

Hopefully this information is clear and covers everything you need, but don't hesitate to reach out if you have any questions.