Every bike GPS has a battery figure on its box. The manufacturer lists 18 hours for the TwoNav Roc, 15 for the Terra, 20 for the Cross Plus and 36 for the Aventura 2 Plus. Those are measured in defined conditions, and a real ride can use more. These are the settings and habits that decide how close you get.
What drains a bike GPS battery most?
The screen. On most devices the backlight uses more power than anything else. Turn brightness down to what you need, and set the backlight to switch off after a few seconds. You will glance at the screen, not stare at it. An automatic backlight, as on the Cross Plus and Aventura 2 Plus, adjusts brightness to the light around you.
Should Wi-Fi and Bluetooth stay on?
Only what you are using. Wi-Fi is for syncing routes and activities at home. Turn it off on the ride. Keep Bluetooth or ANT+ on only if you have sensors or a phone paired.
Do sensors and satellite systems cost battery?
Yes, a little each. Each paired sensor and each satellite system tracked uses some power. Tracking GPS, Galileo, Glonass and BeiDou together gives a better fix under trees and in valleys, so on a trail it is worth the cost. On an open road with a clear sky, some devices let you use fewer systems to save power.
Does cold weather shorten battery life?
Yes. Lithium batteries give less in the cold. A unit left on the bars on a cold morning in the hills will not match its rated figure. The Cross Plus and Aventura 2 Plus state an operating range of -20 °C to 70 °C, which is the range they work in, not the range in which the battery delivers full capacity.
Can I charge it during a ride?
Charge the night before, not the morning of. On a long day, a short top-up at a stop from a power bank goes a long way: the Cross Plus charges over USB-C. For trips measured in days, the Aventura 2 Plus has a removable 6000 mAh battery.
How do I keep the battery healthy?
Lithium batteries age faster when stored full or completely empty, and when left in heat. Between seasons, store the unit part-charged in a cool place, and do not leave it on a dashboard or in a car in summer.
What if the battery still runs short?
If a unit falls well short of its figure even with these settings, the battery may need attention. ASPL services TwoNav devices in India through its own service centre; get in touch and we will look at it.
