This conversation has been merged. Please reference the main conversation: Have you ever considered making a charger that also functions as a batter bank / inverter?
What a concept - a large portable power supply (battery) enabling recharging on the go for professionals who intend to use these tools on large jobs and/or continuously throughout the day!
Hey Ego, you want to own the professional cordless OPE market in North America and offer something to all those companies working in gas powered OPE-Free neighborhoods? Put something like this together! The Ego PPPS - Professional Portable Power Source.
How about making it even better, though... instead of loading it up with 1.7kWh worth of batteries, how about cutting that down to 1kWh or so and adding an optional solar panel to top it up? The unit itself would be smaller and easier to carry while providing enough power to recharge several Ego packs. For those contractors who will be using the equipment heavily throughout the day, optional solar panels can keep it topped up and ready to charge.
Many residential solar panels are good for between 200-300W, so offering either a single or double panel solar kit (depending on usage and geographical location) would keep that power pack charging batteries all day long.
Another improvement would be to integrate the actual charger(s) right into the Power Source. Two or Three charging slots integrated right into the unit would eliminate the need for the standard chargers (which are also not ruggedized for that type of outdoor use), and would be FAR more efficient than converting battery power up to 120V to power a charger that will need to convert back down to 56VDC.
Of course it would also need a couple 120V outputs as well as USB charging capability.
Consider also the marketing advantage it would give a lawn care company who can now claim they are truly solar powered! :-)