For example, a user may select {HEAD ~ certain components} to be used, thereby varying {TAIL ~ the secondary power rate}, or may set the battery threshold at which power is switched to the secondary processor 
For example , a user may select { HEAD ~ certain components } to be used , thereby varying { TAIL ~ the secondary power rate } , or may set the battery threshold at which power is switched to the secondary processor
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH