PowerTap SL - Manual (Page 27)

27
H HU UB B B BA AT TT TE ER RIIE ES S
Normal battery life in the hub is 250 to 300 hours of actual ride time. Use #357 Silver Oxide type
batteries and always replace batteries in pairs. Alkaline type batteries give shorter life and poorer performance.
Battery replacement
-Unscrew the plastic battery cover. Use a spanner wrench or bench vise opened wide to get it started if stuck.
There are O-ring seals that can cause the cover to resist the start of motion. The threading is normal right hand.
-Remove the inner O-ring for ease of installation.
-Remove the battery pack. A small screw driver can be used back and forth between the to ends to start to lift
it out.
-Pop the battery out by bending the plastic retaining tap back and pushing the batter up from the bottom.
-Check that the electrical connector tab from the inside of the hub is perpendicular to the bottom of the battery
pocket. If the tab gets bent, gently press it back to perpendicular with a non-sharp tool.
-Slide the battery pack back into position along the center core. As the battery is engaged a small increase of
resistance to installation should be felt as the electrical connections are made.
-Reinstall the O-ring.
-Grease the inside of the cap where the inner and outer O-rings
make contact. Use a high quality bicycle grease.
-Thread the cap all the way back on.
-Replacement O-rings and battery
packs are available from Saris
Cycling Group.