Rubix Battery 48 Volt 205 AH, Giga Stack Series, Lithium Battery - Blue

Rubix Battery 48 Volt 205 AH, Giga Stack Series, Lithium Battery - Blue

Name: Rubix Battery 48 Volt 205 AH, Giga Stack Series, Lithium Battery - Blue
Brand: Rubix
SKU: RGS-48205
Price: 2587.0 USD
Availability: InStock

BY: Rubix

SKU: RGS-48205

| Availability: In stock

$2,587.00

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Rubix Battery 48 V 205 AH Giga Stack Series

The Rubix Giga Stack Series 48 V 205 AH Lithium Battery is a powerful, scalable energy storage solution designed for demanding residential and light-commercial applications. Featuring 48 V lithium iron phosphate (LiFePO₄) chemistry and 10.5 kWh of usable energy, this battery delivers high-capacity performance, robust cycle life, and integrated system monitoring through a built-in touchscreen LCD. Built for stackable modular design, it supports expandable battery banks and integrates seamlessly with compatible inverter systems — perfect for large solar installations, whole-home backup, or hybrid systems.

Rubix Battery 48 V 205 AH, Giga Stack Series Features

High-Capacity Storage – 10.5 kWh of nominal energy per module at 48 V / 205 AH for extended runtime.

Stackable Modular Design – Stack up to 4 batteries per stack with optional base and lid (sold separately).

LiFePO₄ Chemistry – Robust Lithium Iron Phosphate cells for safety, stability, and long life.

Integrated Touchscreen LCD – Real-time monitoring of SOC, voltage, current, balancer status, cell voltages, and fault logging.

Advanced BMS Protection – Built-in protection against over/under voltage, temperature extremes, and current faults.

Premium Build & Safety – Pressure-vented cells, welded busbars, and UL9540A pending certification (UN38.3 transport certified)

Rubix Battery 48 V 205 AH, Giga Stack Series Applications

Residential Solar Energy Storage – Whole-home backup and power shifting
Commercial Backup Power – High-capacity battery banks for small business systems
Hybrid Grid + Battery Systems – Integrated with 48 V inverters
Off-Grid Solar Installations – Reliable energy reservoir for standalone systems

What's Included

Everything you need is included with your product.

1 x Rubix Battery 48 Volt 205 AH, Giga Stack Series, Lithium Battery - Blue

Rubix Battery 48 V 205 AH Giga Stack Series Specifications

Model

Specification	Value
Model number	RGS51200

Power Ratings

Specification	Value
Nominal voltage	48
Actual voltage @20% SOC	51.2
Amp-hrs	205
Nameplate capacity-kWh	10.5

Charging/Discharging

Specification	Value
Max continuous discharge amps	140
Recommended discharge (max amps)	120
Max cont. discharge kW	7.2
Surge discharge amps 0.5 (micro seconds)	1,000
Surge discharge 10ms	300
Max charging amps-continuous	120
Peak charging amps-30 minutes	140
Recommended voltage range (cycling)	51-56.5
Max voltage range (cycling)	48-57.6
Recommended absorb volts	56.8
Max absorb volts-solar only	57.6
Absorb done amps/per battery	10
Absorb done time (minutes)	10
Float volts	54.4
Temp comp-mV/degrees celsius	0

Operational

Specification	Value
Rated cycle life-100% DoD	4,000
Rated cycle life-80% DoD	6,000
Rated cycle life-50% DoD	8,500
Retained capacity at end of cycle life	80%
Max recommended discharge volts	51V (20%)
Inverter low battery cutout	48V
Low volt cutout wakeup	44
High volt cutout wakeup	55

Certification

Specification	Value
Battery certification	UL9540A Pending
Transport certification	UN38.3

External

Specification	Value
Handles	Indented handles
Terminal type	Bolt-on M8
Max torque	20 FT LBS

Environment/Installation

Specification	Value
Ventilation required	No
Minimum temp (degrees F)	32
Maximum temp (degrees F)	120
Maximum batteries per stack	4
IP rating	50
Outdoor rated	No
Installation position	Horizontal with base unit only

Safety

Specification	Value
Breaker size (amps)	150
BMS low volt cutout	46 +/-1VOLT
BMS high volt cutout	59 +/-1VOLT
BMS low temp cutout	32 F
BMS high temp cutout	135 F
Pressure vented cells	Yes

Internal

Specification	Value
Cell chemistry	LiFePO4
Cell format	Prismatic
BMS amp ratings	200
Balancing type	Impactive
Cell connection	Welded busbar
Max balancing current	1.1A

Touchscreen LCD Features

Specification	Value
SOC%	✓
Volts	✓
Charging/discharging amps	✓
Balancer status	✓
Cell voltages	✓
Faults	✓

Physical Dimensions & Weights

Specification	Value
Batteries per crate	2
Crate dimensions	40 x 30 x 22
Battery weight	199
Total crate weight	437

Frequently-Asked Questions

What is the usable energy on this battery?

Approximately 10.5 kWh nominal at 48 V.

Can these batteries stack?

Yes — up to 4 per stack with base & lid.

What lithium chemistry is used?

LiFePO₄ (Lithium Iron Phosphate).

Is this battery outdoor rated?

No — rated IP50 for indoor use only.

Does it include a Battery Management System (BMS)?

Yes — integrated with protections and LCD telemetry.

Manual

Rubix Giga Stack Series 48 V 205 AH Lithium Battery Specification Sheet

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