EN Quick Start an insulation tube. Otherwise, install the insulation heat shrink tube by referring to the following steps. 1) Prepare an insulation heat shrink tube of the following sizes. Heat shrink tube dimension: thickness 0.2~0.3mm, inner diameter 18~19mm, length 21mm. 2) Place it on the positive pole of the battery. 3) Set the temperature of a heat gun to 270°, then blow on the heat shrink tube for 5 seconds to make the heat shrink tube stick to the battery. 4 Install the battery. Figure 4.9 Install the battery Note: When replacing the battery, pay attention to the positive and negative Copyright Qingdao Hantek Electronics Co., LTD HTM200 user manual 21