GP Power Bank Travel 2-5 hrs - 2100 Series Test Results
Review Date: 16-July-2008
Last Updated: 12-November-2008
Power Consumption- 230V Mains Input
Number
Batteries
Battery Capacity (Nominal)
Power Consumption
(Max)
None
n-a
<1W
1 AA
2100mAH
3W
2 AA
2100mAH
6W
3 AA
2100mAH
6W
4 AA
2100mAH
6W
1 AAA
1000mAH
1W
2 AAA
1000mAH
2W
Note 1: The power does not increase with more than 2 AA batteries indicating the unit is limiting the available current to stop overheating.
Note 2: The estimated efficiency is around 75% to 80% which is typical for this type of circuit.
Temperature Measurements
Case and battery temperatures were measured using an Infra red thermomenter after 2 hours charging 4 fully discharged AA batteries. At this time the power consumption had fallen to 4W indicating the thermal protection was limiting the charging current. Ambient temperature throughout the test was 21C.
Battery temperatures varied from 41C to 46C with the two centre batteries the hottest.
Hottest case temperature 49C at the bottom of the front label with the rest of the case being in the around 35C apart from one small area on the back at 43C (directly behind the hot spot on the front.
