4 ms·

From the specs: BATTERY Battery capacity = 605 Wh Average runtime (no payload) = 90 mins Recharge time = 120 mins So you basically have to buy ~4 batteries (

• thebiss 6y ago
  What makes their batteries 20x more expensive? EV batteries were $176/kWh back in 2018. https://about.bnef.com/blog/behind-scenes-take-lithium-ion-battery-prices/ https://about.bnef.com/blog/behind-scenes-take-lithium-ion-b...
  • vorpalhex 6y ago
    I would hazard a guess of proprietary form factor and handling needs since these aren't mounted in a car chassis, combined with low production volumes initially.
• kevin_thibedeau 6y ago
  Cheap compared to the $1200 Ethernet port.
• hobofan 6y ago
  > a 9 hour work day out of them A _continous_ 9 hour work day. You could alternatively just program it for a 24 hour work cycle, and get the same 9 hour work day on a single battery in segments instead. EDIT: Nevermind. I assumed that it had the capabilities to dock and charge by itself (just like any robot vacuum does), but apparently it doesn't.
• s1artibartfast 6y ago
  How do you figure 9 hours? 3 batteries should be a 24 hour day if you are charging 2 and running 1
  • deleted 6y ago
    [deleted]
  • aerophilic 6y ago
    You might get away with 3 (depending on load), but then you would need an additional charger ($1360 each). But there was a reason I use the ~ symbol =). Personally if I were doing this I would get more chargers, but it is really up to the use case. Either way, assuming 5,000 hours/year, you are looking around $20-30/hour of effective cost (depending on what you count for “everything else)