Could you double check on current cost and power?  Thanks.
This seems like a priority 3 item to me;
Mowbot _could_ work well without solar power,
and would be a good place to save $$.
Of course it would be an easy add-on.
(Jump ahead envelope straching here)
Using Robin's figures of 6 amp draw and a 2:1 charge rate;
we'd need 3 amps  nospam at  12Volts.  Thats 12 panels or $300
for solar charging.
-Monta Elkins
---------------------------------------------------------
| "All that is necessary for evil to triumph is         |
|      for good men to do nothing." -- Edmund Burke     | 
|  Monta nospam at bev.net  -----------------  http://www.bev.net |
|  System Administrator - Blacksburg Electronic Village |
---------------------------------------------------------