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Charge times depend primarily on three factors. The first is battery size. The more energy a battery holds, the longer it takes to charge. The second is charger current. Common USB charger currents are 500 mA, 1 Amp and 2.1 Amps. The BatPaks can be charged with most standard chargers and can charge using up to 2.1 Amps. The third is how depleted the battery is. The following times are for a fully depleted battery.
| CHARGING TIMES | |||
|---|---|---|---|
| Charge Current | BatPak 1 | BatPak 2 | BatPak3 |
| 2.1 Amps | 3 Hours | 6 Hours | 11 Hours |
| 1 Amp | 6 Hours | 11 Hours | 23 Hours |
| 500 mA | 9 Hours | 17 Hours | 34 Hours |
If, for instance, a battery is only half depleted, the charge times will be roughly half of the above values.
