CYPRES 1 works with a battery that is calculated to last for approximately two years, or approximately 500 jumps. The battery is a high-energy density type, with long life, low self-discharge and has a long shelf life (approximately 3 years), as long as it is stored in a cool, dry location (below 68°F). It consists of two round cells, and does not contain heavy metals.
Each battery which has been installed in CYPRES 1 has to be replaced after 2 years at the latest. In the case that the rig or CYPRES 1 will be out of use, the battery should be removed and disposed of after 2 years to prevent possible damage. The battery can be replaced by the user, however, the procedure is tricky and demands considerable attention to detail.
The 2-year maximum period does not start until the battery is installed for the first time. After installing a battery that has been stored for more than 6 months, it is recommended that the CYPRES 1 be turned on and off 4 times in succession to activate the battery.
The battery's current voltage is displayed during each activation cycle. After the unit has been switched on, there is a self-test routine during which numbers beginning with 9999 count down rapidly toward 0. The countdown is interrupted for approx. three seconds at a value somewhere between 6900 and 5700. This interruption indicates battery charge. For example, suspension of the countdown at 6300 means that the actual battery voltage is approx. 6.3 volts.
When the self-test routine is repeated several times within a short interval, the displayed battery voltage will not be constant. This is normal and has nothing to do with the technical components of CYPRES 1 but rather, properties of the battery. Typically, the voltage displayed during a second or third self-test cycle will be lower than the voltage displayed during initial activation. With further self-test cycles, voltage will rise again.
If the unit has not been used for a long time, the battery voltage shown on the display during the initial self-test can appear to be rather low. However, the voltage displayed does not indicate a discharged battery but it is merely due to certain characteristics of the battery: The absence of an electric current over a prolonged period will result in the build-up of an internal protective layer which will minimize self-discharge. This layer can be removed by simply switching the unit on and off a couple of times. You will then see that the battery voltage shown during self-test will rise again.
Battery failure or low battery voltage will be detected by CYPRES 1. At the end of the self-test cycle, CYPRES 1 will stop with an error display of 8999 or 8998 and will not assume operating mode. This indicates that the energy supply of the battery is no longer within operational limits.
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