South Survey Instrument Total Station NTS352 Accessory NB-20 Battery

Model: NB-20

Specifications:

Useful capacity

The temperature has a particularly significant effect on the useful capacity of a battery. In accordance with the operating range for the surveying instruments, the batteries can be operated from –20 °C to +55 °C (–4 °F to +131 °F). With reducing temperature the useful capacity drops rapidly. Continuous use in the upper temperature range (> +45 °C / +131 °F) shortens the life of the battery.

Storage

Leica Geosystems batteries can be stored at –40 °C to +55 °C (–40 °F to +131 °F). Do not store batteries inside the surveying instrument. After storage, charge the battery fully before use. NiCd NiCd batteries can be stored for an unlimited period in any state of charge. NiMH NiMH batteries must always be stored fully charged and recharged after 180 days at the latest. High temperatures and high atmospheric humidity accelerate self-discharging. We recommend storage in the range from 0 °C to +20 °C (+32 °F to +68 °F) in a dry environment. If NiMH batteries are stored in the discharged state for an extended period irreversible damage can be caused. Li-Ion Li-Ion batteries start to deteriorate from manufacture. To reduce the aging effect, store the battery in a cool place at 10%–50% state-of-charge. Li-Ion batteries do not require regular charging while in storage.

Memory effect

The «Memory Effect» occurs if the same charging and discharging (partial discharge) conditions are continuously applied to a battery. The battery then no longer provides the full capacity. The operating time per battery charge reduces. If the capacity of the battery drops noticeably, it is recommended to subject the battery to the refresh function 2 to 3 times. The memory effect occurs particularly with NiCd batteries. With NiMH batteries the memory effect is not so pronounced. Li-Ion batteries are not influenced by the memory effect.