8.4 Volt

Varta Recharge Accu Power 9V 200mah  precharged rechargeable battery with no memory effect, high capacity, can be recharged hundreds of times, retains up to 85% of charge after one year of storage, ready to use out - of - package.

Powerex ΝΙΜΗ 9V (8,4V) 300mAh precharged rechargeable battery with no memory effect, high capacity, can be recharged hundreds of times, retains up to 85% of charge after one year of storage, ready to use out - of - package.

High performance 9V 170 mAh batteries. Great for the environment and your pocket. The Duracell brand has long been associated with high performance and reliability, making Duracell the most trusted battery for all applications.