PIM Master™ Passive Intermodulation Analyzer : Appendix F — Instrument Care : Battery Care
  
Battery Care
The PIM Master is supplied with a rechargeable battery that could potentially leak hazardous compounds into the environment. These hazardous compounds present a risk of injury or loss due to exposure. Anritsu Company recommends removing the battery for long-term storage of the instrument and storing the battery in a leak-proof, plastic container.
Environmental storage requirements: 
Storage Temperature Limits: –20 °C to +50 °C, Relative Humidity ≤ 80 %
The battery packs should be stored in an environment with low humidity, free from corrosive gas, at a recommended temperature range <20 °C. Extended exposure to temperatures above +40 °C could degrade battery performance and life.
Battery charging limits: 0 °C to +45 °C, Relative Humidity ≤ 80 %
The battery supplied with the PIM Master may need charging before use. Before using the instrument, the internal battery may be charged either in the instrument, using either the AC Adapter or the 12-Volt DC adapter, or separately in the optional Dual Battery Charger. Anritsu part numbers for these accessories are in your Technical Data Sheet/Product Brochure.
Use only Anritsu approved battery packs. Anritsu part numbers are in the Technical Data Sheet/Product Brochure.
Recharge the battery only in the PIM Master or in an Anritsu approved charger.
When the PIM Master or the charger is not in use, disconnect it from the power source.
Do not charge batteries for longer than 24 hours. Overcharging may shorten battery life.
If left unused, a fully charged battery will discharge itself over time.
To prevent instrument damage, Anritsu Company recommends removing the battery for long‑term storage of the instrument.
Temperature extremes affect the ability of the battery to charge: allow the battery to cool down or warm up as necessary before use or charging.
The battery can be charged and discharged hundreds of times, but it will eventually wear out.
The battery may need to be replaced when the operating time between chargings becomes noticeably shorter than normal.
Never use a damaged or worn out charger or battery.
Storing the battery in extreme hot or cold places will reduce the capacity and lifetime of the battery.