SUNRNR of Virginia, Inc.
An easy first step in going green and staying plugged in

Lithium Ion SUNLION

Li-Ion Cost Difference
lithium ion cost
Substituting Li-Ion in place of the standard AGM battery will cost over $2000 extra per kW and we recommend a minimum of 3 kW.   (But expected battery life is four times greater.)  Now brace yourself, you'll also want 2-8 more solar panels to make going lithium worthwhile (i.e. additional $4000+).
Li-Ion Weight Difference
lihium ion weight
An AGM battery weighs about 80 lbs per kW;  Li-Ion batteries weigh about 20 lbs per kW.  A 3kW SUNLION will weigh about 160 lbs and can be the linking power module of a solar electric power system or the primary unit of any offered inverter-model type. 



The SUNLION unit looks similar to any other SUNRNR on the outside, but the inside (lithium ion in place of AGM battery) makes the input/output characteristics quite different:
  • 3 kW of Li-Ion storage capacity will fit in place of the 2+kW AGM battery in any of the primary units.  Because a power module does not have an inverter, there is room for 6 kW in a SUNPWR! 
  • Lithium Ion batteries can charge at a faster rate (50+%) than the 10% of battery capacity an AGM battery is limited to.  Each kW of Li-Ion can accept the charge of at least two 140W solar panels.  That means a minimal 3kW SUNLION can fly over 800W of solar panels and as we always say, the power is in the panels.
  • However, an AGM battery is better than a Li-Ion at providing the hard start-up power for certain loads.  Having a little of both makes for the perfect system.
  • SUNRNR models are defined by their inverters (or lack thereof with respect to the non-invertered SUNPWR Power Module).  Any model can have either AGM or Li-Ion battery storage (and in special cases, both).  An excellent solar electric power system would be mix and match - having one primary unit be one type of battery and another unit (either power module or another primary unit w/different inverter) be of the other battery type.  Stored battery power may be shared by use of the Link Cable shown below.

lithium ion unit linked with AGM unit  +  add 6 solar panelsadd 6 solar panelsadd 6 solar panelsadd 6 solar panelsadd 6 solar panelsadd 6 solar panels

PO Box 102 • Port Republic, VA  24471 • 540-271-3403 • • Made in USA 
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