Varta Industrial Pro 4022 9V E -Block 6LR61 Block battery - 20 pieces Batteries especially for professional use Details The Varta industrial per batteries are especially designed and manufactured for professional use. Energy at an expert level with superior quality that makes it independent in many special situations. * Long lifespan of up to 10 years * Premium quality made in Germany * OEM friendly product design for simple and flexible use * Technology: Alkali-Magnan * Tension: 1.5 V * Capacity: 640 mAh * Height: 48.5 mm * 20 pieces per pack For more information, please refer to the data sheets.