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AKAIYAI RackMaster Pro A51R100-B 5.12kWh 51.2V Lithium Battery
Solar Batteries

AKAIYAI RackMaster Pro A51R100-B 5.12kWh 51.2V Lithium Battery

Product ID: 19165-JU
Warranty: 5 Years
No reviews yet
৳89,500
In stock (20 available)

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৳50

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Outside Dhaka

৳100

2-5 business days

Specification

  •  Brand: AKAIYAI
  •  Model: A51R100-B
  •  5.12kWh modular lithium battery, scalable up to 40kWh
  •  6000+ cycles @ 80–90% DoD (low self-discharge, long life)
  •  CAN & RS485 communication, inverter-compatibl
  •  5-year warranty (excluding burns & physical damage)

AKAIYAI RackMaster Pro A51R100-B – 5.12kWh Modular Lithium Battery for Solar & ESS Systems

AKAIYAI RackMaster Pro A51R100-B is a 51.2 V, 100 Ah rack-style lithium module delivering 5.12 kWh per unit for residential and light-commercial energy storage systems (ESS). As part of KAIYA’s RackMaster Pro line, this battery focuses on high cycle life, easy integration with hybrid inverters, and quick, low-maintenance installation in standard equipment racks.

With 6000+ cycles and excellent round-trip efficiency, the RackMaster Pro helps lower the lifetime cost of storage while keeping more of your solar energy usable. Its robust metal enclosure (IP20), quiet natural-convection cooling, and BMS (16S100A) protections make it a dependable core for solar self-consumption, backup power, and time-of-use optimization.

Integration is straightforward. The battery supports CAN, RS485, and RS232, enabling closed-loop operation with many popular hybrid inverters for accurate SOC reporting, safe charge limits, and optimized performance. Recommended charge is 20 A (max 50 A), with a CC 0.5C 56.8 V / CV 58.4 V profile, while discharge supports 100 A continuous (50 A recommended) with a 44.8 V cut-off. These settings, combined with precise control from compatible inverters, help protect cell health and sustain capacity over time.

The RackMaster Pro is built for practical installs. At 420×440×132 mm and ≈43.5 kg, it fits neatly in rack/cabinet spaces, uses M5 terminals for secure connections, and requires minimal service. Thanks to low self-discharge (<3%/month), systems stay ready even after extended standby periods. Charge in environments from -10 °C to +55 °C and discharge from -20 °C to +55 °C; store between 0 °C and +30 °C in a clean, dry area.

Scalability is simple. Start with one 5.12 kWh module and parallel up to 16 units to reach ≈40 kWh, expanding as loads grow—without redesigning your system. This flexibility suits homes and SMEs alike: keep essential loads (lighting, Wi-Fi, refrigeration, POS) online during outages; shift energy from off-peak to on-peak periods; and capture more daytime PV to use at night.

Use cases

  • Self-consumption of solar energy with evening/night usage

  • Backup power for essential loads during grid outages

  • Time-of-use shifting to reduce bills where TOU tariffs apply

  • Scalable retrofits adding storage to existing PV systems

  • Small commercial/edge sites needing clean, quiet storage

Installer tips

  • Use closed-loop profiles over CAN/RS485 where available for safest charging and accurate SOC

  • Size DC cabling and protective devices to current and run length; observe local codes

  • Install indoors in a ventilated, clean, dry space; keep within operating temperature ranges

  • For best life, avoid chronic 100%/0% SOC extremes; follow the recommended charge current

Technical Specifications

Parameter Value
Model A51R100-B (RackMaster Pro)
Nominal Voltage 51.2 V
Capacity 100 Ah
Energy 5120 Wh (25 °C, 0.2C)
Internal Resistance ≤10 mΩ @50% SOC
Cycle Life ≥6000 cycles (typ.)
Monthly Self-Discharge <3%
Charge Mode CC 0.5C 56.8 V / CV 58.4 V
Recommended Charge Current 20 A
Max Charge Current 50 A
Charge Cut-off Voltage 58.4 V
Discharge – Continuous 100 A (recommended 50 A)
Discharge Cut-off Voltage 44.8 V
Charge Temperature −10 °C ~ +55 °C
Discharge Temperature −20 °C ~ +55 °C
Storage Temperature 0 °C ~ +30 °C
Ingress Protection IP20
Cell & Method 3.2 V 100 Ah 16S1P
Case Metal, rack-mount
Dimensions (L×W×H) 420 × 440 × 132 mm
Weight ≈43.5 kg
Terminal M5
Communication RS485 / RS232 / CAN
BMS 16S100A
Parallel Capability Up to 16 units

 

Disclaimer:
Product descriptions and technical specifications on this website may be generated with the assistance of AI and are provided for reference purposes only. Actual product features, performance, and specifications may vary — please verify all details directly with the official manufacturer's website before purchase. We do not manufacture; we are a seller and are not responsible for discrepancies in product features, behavior, or specifications.

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