TESLA RECHARGEABLE+ batteries are top NiMH batteries with a long service life. The application of advanced technology guarantees a very low level of self-discharge and a long service life – at least 1000 charging cycles. All batteries are factory charged and can be used immediately out of the box. They are suitable for all appliances in the home. To maintain satisfactory cell/battery performance when being stored for an extended period, fully charging the cell/battery within a 12-month period is highly recommended. Our products are developed in EU Czech Republic and produced in Belgium and PRC.