Pylontech Force-H3

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6.2 Replacement of Main Components
Danger: The Force-H3 is a high voltage DC system, operated by qualified and authorized
personnel only.
Danger: Before replacing the main components, turn off the maintenance battery
string’s power first. Make sure the
D+ and D- terminals are without power. Refer to section
4.2 for turning off process.
6.2.1 Replacement of Battery Module
1. Charge existing module to full (SOC 100%). Make sure new battery module is 100% SOC as
well.
2. Turn off the whole battery string’s power. Make sure to confirm the D+ and D- terminals are
without power. Refer to section 4.2 for turning off process.
3. Dismantle D+ and D- Power cables, Communication cable and Grounding cable.
4. Dismantle the control Module’s fix screws on the left and right.
5. Dismantle the fix metal brackets as follows.