Temperature Cutoff
A protective or safety device (e.g., thermostat, PTC, etc.) which senses temperature in a battery and opens or cuts off the electrical circuit if the specified temperature is exceeded, thus preventing a further rise in temperature due to the charge or discharge of a battery.

Terminal
A device at the end of a cell or wire for making a connection to an adjoining cell or wire.

Thermistor
A temperature sensitive resistor usually made from specially processed oxides that are used to sense end of charge temperature rises and terminates high rate charging.

Thermostat
A temperature sensitive switch.

Top-Up Charge
A low rate charge following the main charge, designed to ensure maximum capacity.

Trickle Charge
A charge at a low rate, balancing losses through local action and/or periodic discharge, to maintain a cell or battery in a fully charged condition.