What direction for batteries in a leeds laser pen?

Leeds laser pens typically use a small battery, often a lithium-ion or alkaline type, depending on the model. To install the battery, ensure the positive (+) end is facing the correct direction as indicated inside the battery compartment. Generally, the positive end should be inserted first, but it's essential to check for any markings or instructions in the pen. Always handle batteries with care to avoid damage or leakage.