V-TAC ESS Series, Instruction Manual, Page: 3 / 33

2 Overview
2.1 Product Application
RESS is a next-generation product developed by V-TAC, which is used in residential energy storage solut
ions. This battery system has a capacity of 19.2 kWh or 20.48 kWh.
RESS integrates the high-performance BMS. To extend battery life, it has multiple protection functions
such as system over-charge, system over-discharge, cell over-voltage, cell under-voltage, charging over-
current, discharging over-current, and insulation fault. It also has RS485, CAN, and dry contact
communication, allowing for remote monitoring.
2.2 Product Composition
The RESS consists of one battery cabinet (two battery boxes and one chassis base inside), one high-
voltage box, and four battery modules.
The composition of the RESS is shown as follows:
Figure 1. RESS composition
(1) High-voltage box (2) Battery module (3) Battery cabinet