Empower Oarlock Battery
| Energizer Ultimate Lithium | 25hrs |
| Duracell Duralock Rechargeable 2500mAh | 15hrs |
| Eneloop Pro Rechargeable 2450mAh | 15hrs |
| Energizer Max Alkaline | 15hrs (NOT recommended!) |
| Tenergy Rechargeable 2600mAh | 14hrs |
| Energizer Power Plus Rechargeable 2300mAh | 13hrs |
| Energizer Industrial Alkaline | 13hrs (NOT recommended!) |
| Duracell Alkaline 1500mAh | 11hrs (NOT recommended!) |
| Energizer Universal Rechargeable 1500mAH | 10hrs |