[FPSPACE] lifespan of MER

Keith Gottschalk kgottschalk@uwc.ac.za
Fri, 16 Jan 2004 13:44:06 +0200

>In addition to the problem of dust settling on the solar panels, 
>blocking the sun...
>"The power system for the Mars Exploration Rover includes two 
>rechargeable batteries that provide energy for the rover when the sun

>is not shining, especially at night. Over time, the batteries will 
>degrade and will not be able to recharge to full power capacity. 

 There you are, job description for Zubrin - to walk behind the rovers
with a feather duster & a pack of new rechargable batteries. Maybe the
next probe should have a PV wiper to remove the dust. Or change the
batteries to recharable fuel cells without that problem.