Powering a stepper motor using a LiPo battery

hello,

i using nema17 stepper motor 1.7a/phase 3.06 v rated voltage . need use battery since have 2 motors driving wheels small cart. battery have 11.1v 2200mah , motor l298 based dual h-bridge. question type of configuration or how can limit current don't fry up.

motor: http://dlnmh9ip6v2uc.cloudfront.net/datasheets/robotics/42byghm809.pdf
driver: http://www.robotshop.com/media/files/pdf/datasheet-mot103b1m.pdf
battery: http://lphonet.en.alibaba.com/product/738699122-218544641/2200mah_11_1v_14_8v_30c_rc_lipo_batteries.html

any suggestions helpful! thank you.

the l298 driver can't handle current required low voltage, high current stepper. overheat , shut down. there couple of other options. first put resistor (e.g. 6 ohms, 10 or more watts) in series each winding reduce current, wastes power. other use modern stepper driver a4988 or drv8825 pololu http://www.pololu.com/product/2133

with latter option, still need cool motor driver full current through motors. can reduce motor current reasonable level (for motor driver) using on-board adjustment.

finally, if discharge lipo batteries below 2.5 v/cell, destroyed. need battery protection pcb avoid that. see http://www.all-battery.com/batterypcbpcmbms.aspx

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