HR-4UTC Fujitsu Ready to Use, Up to 2100 recharges Rechargeable AAA Battery.

Replaces discontinued model HR-4UTA 1800 cycle battery. 

Features of Fujitsu Low Self Discharge batteries

Manufactured in Japan by FDK Twicell Co, Ltd, the sole manufacturer of NiMH LSD batteries in Japan.
Featuring Twicell's world's first invention of Low Self Discharge (LSD) NiMH technology: high capacity NiMH batteries with superior charge retention makes Fujitsu LSD batteries ideal for virtually all situations where alkaline or lithium AA / AAA size batteries are currently used. 
Up to 4.5 times more powerful than equivalent size alkaline batteries when used in high power consumption devices. Ideal for battery powered toys and digital cameras.  
Factory pre-charged with solar energy and ready to use straight from the pack.
Recharges up to 2100 times! You'll use hundreds of alkaline batteries just to match the overall life and performance of Fujitsu LSD batteries.
Up to 70% charge remaining after 5 years. Low self discharge means Fujitsu batteries are still ready for use even after long periods of storage.
Environmentally friendly - Fujitsu LSD batteries and packaging are completely recyclable.
Made in Japan.
Rechargeable on most standard & fast chargers designed for NiMH batteries.