The LI-42B Rechargeable Lithium-ion Battery from Olympus features 740 mAh and uses the LI-41C battery charger.
The Olympus DS7000, DS3500, DS2500 digital recoder uses a small Lithium Ion battery, the Olympus LI-42B. The battery allows these Digital recorders to perform day and night for a few days between charges. Under normal use the battery will allow the The Olympus DS7000 to go for one week with a single charge.
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