The charger fulfills its function the load is not too fast 4 to 6 hours depending on the battery, an advantage for their preservation, value for money is interesting, not overheating pas.Inutile to buy the "battery" Garmin who only have 2 batteries coupled rechargeable 2000. The mark does not give details on the subject, how to propose a "battery?" 4 to 5 times more expensive.