bq24156A: How does one adjust the max charge current above 950mA?

Ensure you follow the procedure in the BQ24156A-EVM users guide (http://www.ti.com/litv/pdf/sluu453). Section 2.4.1 on the top of page six describes where the max current limit is stored and how it is changed. The safety limit register can only be changed immediately after VBAT or VBUS are applied.