4.3. Battery

The SL-RAT RX and TX are powered by a 11.1v Li-Ion battery pack rated at 44.4 Wh, 10A. The following directions are essential for correct operation and to avoid damage or loss caused by misuse.

1. Prior to using the SL-RAT RX and TX components in the field, verify the battery levels are sufficient for the planned number of acoustic measurements.
2. To maximize use of battery, the device should not be consistently operated at low battery levels. It is recommended that the device be fully charged prior to use.
3. A low battery warning occurs when the battery can no longer support additional measurements without being recharged. When a low battery warning occurs, the component should be turned off and recharged. Failure to do so can cause damage to both the battery and the component’s electronics.
4. Only use the battery charger provided to recharge the units. Failure to do so can result in battery pack overheating and potentially catching fire.
5. The battery charger jack is keyed to the plug on the RX and TX components. Make sure the keys are correctly aligned and do not force the connection. Failure to do so can result in battery pack overheating and potentially catching fire.
6. Prior to using the battery charger, visually inspect the wires for any damage. If damage is observed, do not use. Contact the manufacturer for a replacement battery charger. Failure to do so can result in battery pack overheating and potentially catching fire.
7. Battery charger is for indoor use only. Do not expose the battery charger to moisture or water.
8. Do not recharge battery while RX and TX are in the SL-RAT carrying case.
9. Do not open the cover of the battery charger. High voltage inside the charger can cause serious injury.
10. Do not operate the SL-RAT while charging the batteries.
11. Do not use the battery charger to charge any other battery or battery pack.
12. In order to maximize the use of the battery, it is strongly recommended to disconnect the power plug from the wall socket after the battery is charged. The battery should be charged every three months when not in use.
13. If at any time you witness smoke, discontinue charging process immediately, disconnect the battery charger and observe the component in a safe place for approximately 15 minutes. Smoke may be an indication of battery failure, and the reaction with air may cause the chemicals to ignite, resulting in fire.
14. Since delayed chemical reaction can occur, it is best to observe the battery as a safety precaution. Observation should occur in a safe area outside of any building or vehicle and away from any combustible material.
15. Never store or charge battery pack inside your car in extreme temperatures, since extreme temperature could lead to overheating of the battery and potentially cause a fire. When transporting or temporarily storing in a vehicle, temperature range should be greater than 20°F but no more than 150°F.
16. Store battery at room temperature between 40°F and 80°F for best results.
17. Storing battery at temperatures greater than 170°F for extended periods of time (more than 2 hours) may cause damage to battery and as well as potentially cause a fire.