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4.Quick tips to improve the lifetime of your battery.
Use Battery Conditioners
All batteries suffer from a condition called the "memory effect" including Lithium-Ion. This
results in the battery no longer charging back to full capacity. To avoid this, use a conditioning
battery charger which can detect memory effect and try to correct it. If you don't have a
conditioning batter charger, try to fully discharge the battery before recharging it. Regular
top-up charges are most likely to result in memory effect.
A two-way radio is a radio that can do both transmit and receive a signal (a transceiver), unlike a broadcast receiver which only receives content. A two-way radio (transceiver) allows the operator to have a conversation with other similar radios operating on the same radio frequency (channel). Two-way radios are available in mobile, stationary base and hand-held portable configurations. Hand-held radios are often called walkie-talkies, handie-talkies or hand-helds.
Two-way radio systems usually operate in a half-duplex mode; that is, the operator can talk, or he can listen, but not at the same time. A push-to-talk or Press To Transmit button activates the transmitter; when it is released the receiver is active. Full-duplex is generally achieved by the use of two different frequencies or by frequency-sharing methods to carry the two directions of the conversation simultaneously. Methods for mitigating the self interference caused by simultaneous same-frequency transmission and reception include using two antennas,or dynamic solid-state filters.