China firm launches solar panel steering battery that works even in extreme –40°F

Wiltson Energy, a Chinese company, has created an innovative lithium iron phosphate battery that enables solar tracking systems to operate in extreme cold, down to -40°F. This 26650-format battery retains over 90% capacity in severe cold and charges below freezing without preheating, unlike traditional batteries. The technology helps solar panels maintain optimal sun alignment year-round, preserving the energy yield advantage of tracking systems over fixed panels. This advancement significantly improves renewable energy performance in harsh winter climates where conventional batteries typically fail.