Originally Posted by
Machka
Yes ... anything under 90 hours is completely pointless, and I'd prefer something that lasts a lot longer than that.
The computers I have on my single bicycle last years before I need to replace the battery.
Depends what you want the bike computer to do. The Edge 705 is not a simple bike computer. It's a GPS system with maps. GPS systems need a bit of power. Either you replace the batteries or recharge them. Unless you ride double centuries every day they do not need to be recharged every day. However, few portable GPS systems can last more than 12 hours of use without recharging.