Homegrid Stack'd Series 28.8 kWh Home Battery System

28.8 kWh Stack'd Series Specifications

Model	Stack'd Series 6-Module
Energy Capacity	28.8 kWh
Continuous Power Output	14.4 kW
Surge Power (10 seconds)	24 kW
Module Capacity	4.8 kWh per module
Battery Chemistry	Lithium Iron Phosphate (LFP)
System Voltage	Low Voltage DC
Dimensions (H × W × D)	46.25 in × 29 in × 15.75 in
Weight	736 lbs
Parallel Capability	Up to 15 Stacks (432 kWh)
Communication Protocol	CAN / RS485
Warranty	10 Years
Certifications	UL 1642, UL 1973, UN 38.3, UL 9540, UL 9540a, CEC, SGIP, OGPe

Build a Complete Energy Storage System with HomeGrid + Sol-Ark 18K!

HomeGrid Stack’d Series 28.8 kWh Lithium Battery System

Name: HomeGrid Stack’d Series 28.8 kWh Lithium Battery System
SKU: HG-STACK-28.8-BAT-SYSTEM

SKU HG-STACK-28.8-BAT-SYSTEM

The HomeGrid Stack'd Series 6-Module configuration delivers 28.8kWh of usable energy storage with 14.4kW continuous power output and 24kW surge capability for high-energy residential and small commercial applications. Lithium iron phosphate chemistry provides superior cycle life and enhanced safety for installations requiring substantial daily energy throughput and multi-day backup capability. This configuration supports homes with electric vehicle charging, heat pumps, and high consumption profiles.

Modular architecture enables fast installation with tool-free module connections and no inter-module wiring. Compatible with Sol-Ark, and Solis inverters via CAN / RS485 communication protocol. System can scale to 15 Stacks in parallel for up to 576kWh total capacity, accommodating large residential and small commercial energy storage requirements.

HomeGrid 6-Module Configuration Features

Rapid Installation: Tool-free connections between BMS base and battery modules eliminate conduit work and reduce installation time to under 30 minutes per Stack
Whole-Home Backup: 28.8kWh supports hours of comprehensive home backup including air conditioning, well pumps, and kitchen appliances
Maximum Power Output: 14.4kW continuous with 24kW surge capability handles HVAC systems, EV charging, and heavy appliance startup simultaneously
Future-Proof Expandability: Add modules to existing Stack (up to 8 modules total) or parallel additional Stacks without rewiring or system reconfiguration
Enhanced Safety Profile: Cobalt-free LFP chemistry eliminates thermal runaway concerns and operates at low voltage for simplified permitting and reduced safety requirements

HomeGrid Stack'd Series Component Options

Standard BMS/Base (#4000001): Intelligent battery management system with integrated monitoring and power distribution for standard temperature applications
All-Weather BMS/Base (#4000044): Enhanced base unit with extended operating temperature range for extreme climate installations
Standard 4.8kWh Module (#4000051): All-weather LFP battery module for field expansion and capacity upgrades
Heated 4.8kWh Module (#4000043): Temperature-controlled module with integrated heating elements for cold climate installations below 32°F

Attachments Details

Stack'd Series 28.8kWh Configuration Technical Review (6 Modules)

Installation completes in under 30 minutes per Stack using tool-free vertical stacking on the gray base stand, which elevates modules 7.75 inches above floor level for protection against standing water. The BMS integrates detection mode DIP switches to automatically recognize connected modules during power-on sequencing from bottom to top.

Communication with hybrid inverters requires CAN bus wiring through the INV-CAN port, with pre-configured cables for Sol-Ark installations. Parallel expansion capability supports up to 15 Stacks using Link A to Link B daisy-chain configuration with standard Ethernet cables between BMS units. Battery terminal connections demand 4/0 gauge cabling within 20-foot runs to minimize voltage drop, secured with M8 hardware at specified torque values. Field expansion adds modules to the top of existing Stacks without DIP switch reconfiguration of original modules, maintaining the bottom-up addressing convention that simplifies future service and capacity upgrades.

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Stack'd Series System Configurations

Specification	2 Modules	3 Modules	4 Modules	5 Modules	6 Modules	7 Modules	8 Modules

Capacity	9.6kWh	14.4kWh	19.2kWh	24kWh	28.8kWh	33.6kWh	38.4kWh
Power	8.6kW	12.9kW	14.4kW	14.4kW	14.4kW	14.4kW	14.4kW
Surge (10s)	14.4kW	14.4kW	24kW	24kW	24kW	24kW	24kW
Weight	304 lbs	412 lbs	520 lbs	628 lbs	736 lbs	844 lbs	952 lbs
Height	25.25 in	30.5 in	35.75 in	41 in	46.25 in	51.5 in	56.75in