Chargeable accumulator suitable for multimeter

The utility model relates to a rechargeable battery suitable for multimeters, which comprises a casing, a rechargeable battery core arranged in the casing and a charging circuit arranged in the casing, wherein, an output end of the charging circuit is respectively electrically connected with a positive electrode and a negative electrode of the rechargeable battery core, and an input end of the charging circuit is connected with the external of the casing through conducting wires. Due to the structural characteristics adopted by the utility model, the battery is put into a multimeter during use, the conducting wires are respectively electrically connected with a positive instrument pen and a negative instrument pen of the multimeter, and a charging switch is switched off. When the battery level is run out, the charging switch is shut down, the positive and negative instrument pens of the multimeter are separately electrically connected with the positive electrode and the negative electrode of a power supply, so that the battery can be charged, which brings convenience to users.