Solution 12257: Differences Between the TI-30X IIB And the TI-30X IIS.
What are the differences between the TI-30X IIB and the TI-30X IIS?The only difference between both these scientific calculators is the power source. The functionality of the TI-30X IIB and the TI-30X IIS calculators are the same.
1) The TI-30X IIB is battery powered.
2) The TI-30X IIS is dual powered (solar and battery).
Both models utilize the same type of battery.
Please see the TI-30X IIB / TI-30X IIS Quick Reference Guide for additional information.