Renata SA Encapsulated Batteries (Power Modules) - General Technical Information - Manual (Page 2)

3V Lithium Batteries
General Technical Information on Lithium Batteries
(cont.)
Self discharge - Storage
RENATA lithium batteries offer excellent storage characteristics. The loss of capacity due to self discharge
is less than 1% per year at room temperature (23°C). Thanks to the high stability of their chemical system,
MnO
2
/Li batteries have a shelf life of up to 10 years, at room temperature.
The internal chemical reactions of a battery are accelerated by high temperatures and slowed by low
temperatures. In other words, the loss of capacity during storage depends largely on storage temperature.
Higher temperatures result in increased self discharge rates, while lower temperatures reduce self
discharge (as shown by graphs below). Storage at low temperatures bears the risk, however, that batteries
are short circuited by moisture condensation when transferred into a warmer environment.
Rev. 10/02
Renata SA Tel. +41 (0)61 975 75 75 [email protected]
CH-4452 Itingen/Switzerland Fax. +41 (0)61 975 75 95 www.renata.com