We are very professional in the lithium thionyl chloride(Li/SOCl2) battery. Our products mainly used in MWD/LWD downhole drilling apparatus,subsea equipment and other industries. Battery packs,GEOLINK,APS etc,battery cells,ER321270(DD),ER26100(CC),ER14500(AA) etc,and Battery accessories,6pins4holes, firberglass tubes and so on.