Battery Case, 21700

Spare 21700 Downtube battery case. 

Features include:

• 3 Pin ST3 Charge Port
• Installs to Waterbottle Eyelets (we recommend Triple Bobs for best stability) on Downtube
• Mechanically Locking Key Switch
• Does not include any output cabling

Note: voltage selection only affects the readout of status LED - this case can be used for any ebike battery voltage.