====Rechargeable alkaline==== ===Positive characteristics=== • Batteries and chargers are less expensive than other types. • No cadmium (more environmentally friendly than NiCd). • Very low self discharge. ===Negative characteristics=== • Require a special sort of charger. • Cannot be recharged as many times as other types (25 to 100 times). • Cannot be fast-charged. • Reduced capacity under heavy loads (Peukert Effect). • Can have a reduced capacity after several charge/discharge cycles.