Battery Chargers
Power Inverters
Powerpacks
Jump Starters
The way to avoid (NiCad) "memory effect" is to fully cycle (fully charge and then fully discharge) your battery at least once every 2 to 3 weeks.
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This is a Hi-Capacity Brand Charger for your Ricoh SpeedLight 300P. The Hi-Capacity Charger meets or exceeds original manufacturer power specifications for Ricoh SpeedLight 300P Chargers.