Sencore

Rechargeable Battery (BY289) - Lead acid battery provides portable operation for the LC103. This is an optional accessory.

The LC103 is designed to operate as a completely portable unit with the optional BY289 rechargeable battery installed. The operation of the LC103 when it is battery powered is the same as when it is AC powered except that the display will dim slightly to reduce the power consumption and increase battery life. The length of time the LC103 will operate before the battery needs recharging depends on several factors: 1) the test functions used; 2) temperature; 3) battery age.

Leakage tests place the heaviest current drain on the battery - greater currents result in shorter battery life between charging. Value tests place the least drain on the battery. The LC103 provides approximately 2 hours of typical operation using battery power. These times, of course, will vary with temperature and battery age.

As the temperature of the battery decreases, its capacity also decreases. The operating time between recharging decreases at the rate of approximately 1 hour for every 20° F drop in temperature below 70° F. The BY289 battery is a sealed, lead acid type that requires no maintenance other than recharging. As a battery ages, it will require more frequent recharging. If used properly, the BY289 will provide several years of service before needing replacement.

The BY289 is a rechargeable battery for operating the portable LC103

The sealed lead-acid battery provides a safe and reliable source of electrical energy when correctly used

The lead-acid design eliminates the "memory" problems associated with nickel-cadmium batteries, while allowing for hundreds of charge/discharge cycles

Lead-acid batteries are not adversely affected by constant "trickle" charging, allowing the battery to be kept at its full charge level until needed in portable application

The BY289 sealed design allows the battery to be operated in any position without the likelihood of acid spills