The HA-Z204 are well known for equipment failure,thus increasing the downtime in equipment usage and cost association.

These batteries are expensive to initally purchase. A refurbished batttery will be a cheaper alternative.  

Using the latest Hi capacity Samsung 18650 cells,the battery pack is rebuilt and checked for capacity,

charge and discharge consistancies.The internal electronics are also checked to provide reliable service

throughout its lifetime.  

All batteries are supplied with a 90 day warrenty. Old battery to be returned.