Tag Archives: maintenance

Off the grid solar system maintenance

Empty distilled water container after adding water to the lead-acid cells (the grey cap on the right opens to allow the water to be poured in with a funnel)

This morning I performed a couple simple maintenance tasks for our off-the-grid solar system: Washing the solar panels This is actually optional maintenance, as you don’t have to wash your panels. However, keeping solar panels clean and free of dust etc. can appreciably boost your power output. After washing the panels (it has been pretty dry and dusty lately) I had about 10% more electricity being generated. Woot! Adding distilled water to the batteries Flooded lead acid* batteries periodically require distilled

Lenovo ThinkPad X220 Service Manual PDF

lenovo-x220-service-manual-sample-diagram-disassembly

I love my Lenovo X220, it truly is a superb computing machine If you are going to add an mSATA drive or other somewhat in-depth upgrades, you may want to checkout the service manual for the X220. It is comprehensive and nicely formatted. Color photos would be nice but the black and white diagrams are sufficient. Official Lenovo X220 service manual: dl link as of 2012.01.17 Service manual rating: 4.5/5 stars (one of the better service manuals I have used!) [starreview tpl=16]