Integrated Module Protection - Carbest 81382 Benutzerhandbuch

Relationship Between Charge Limits and Temperature
Due to the chemistry of lithium Ion cells, the cells cannot accept as much charge current at lower
temperatures without risking permanent loss of capacity. As the cell's temperature rises during
the charging process, they can gradually accept higher currents.
Temperature (°C)
-20
-10
0
10
20
Maximum recommended continuous charge rate is 30A.

Integrated Module Protection

The TI 12V/110 includes integrated protection circuitry to prevent the battery module from
exceeding its voltage limits. The module's circuitry interrupts either charging or discharging cur-
rent if the battery is in danger of exceeding upper or lower voltage or temperature limits.
Over Voltage and Under Voltage
The TI 12V/110's circuitry continuously monitors cell voltage and can interrupt either charge or
discharge current in the event that a cell's voltage exceeds safe operating limits. The over voltage
and under voltage protection include software/hardware protection.
Over voltage
Four power MOSFET are used to control and will be turn OFF and interrupt the charge current
when meet over voltage protection(The protection circuitry interrupts current if the voltage on
any single cell rises above 3.9V(software protection) or 4.3V(hardware protection).
1) For hardware protection: over voltage protection threshold is 4.3V, the over voltage protection
recovers when voltage drops to 3.6V.
2) For software protection: over voltage protection threshold is 3.9V, the over voltage protection
recovers when voltage drops to 3.65V.
Under voltage
Four power MOSFET are used to control and will be turn OFF and interrupt the discharge current
when meet under voltage protection (The protection circuitry interrupts current if the voltage on
any single cell falls below 2.45V (software protection) or 2.0V(h ardware protection).
1) Hardware protection: During discharging, when any cell's voltage falls below 2.0V, the dischar-
ge MOSFET turns OFF. Interrupt discharge current and under voltage protection will recover
when voltage reaches to 2.6V.
2) Software protection: During discharging, when any cell's voltage falls below to 2.45V, the
discharge MOSFET turns OFF. Interrupt discharge current and under voltage protection will
recover when voltage reach as to 2.6V.
If the voltage on a single cell falls below meet under voltage protection, the protection circuitry
enables under-voltage protection, preventing continued discharge until you charge the battery.
To avoid degradation you must recharge the battery module within 7 days.
Charge Rate by Temperature
Charge rate
C/5
C/2
1C
2C
4C
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