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BigBattery| 48V KONG ELITE MAX - LiFePO4 - 372Ah - 19.0kWh

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Price: $6,900.00 USD
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List Price: $10,100.00 USD
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Price: $6,900.00 USD
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BigBattery|48V KONG ELITE MAX - LiFePO4 - 372Ah - 19.0kWh

MAXIMUM CAPACITY! BigBattery’s 48V 19kWh LiFePO4 KONG Elite Max battery is the largest-capacity unit we offer and if you’re looking to build a massive solar or off-grid power system, the KONG Elite Max has everything you need.

The KONG Elite Max comes equipped with our advanced BMS, which affords it a wide temperature operating range for all you winter warriors, brand new LiFePO4 cells, and sturdy, caster wheels so you can store your KONG Elite Max wherever you need.

With more BMS protections than any battery in its class, you’ll be staying powered, and staying safe through it all. Plus, this unit includes an LED Smart Display so you can always monitor your battery’s health and status. Set your home up with a massive power system with the KONG Elite Max today!

Designed For 48V Applications

  • Massive Power Systems
  • Lead Acid Replacement
  • Intense Heat and Cold
  • Emergency Power
  • Off-Grid Power
  • Solar Systems
  • Mobile Power
  • Data Servers
  • Robotics
Tech Specs
SKU: AKONG-48190-G1
System Voltage: 48V
Nominal Voltage: 51.2V
Chemistry: LiFePO4
Charging Voltage Range: 55.6 - 58.0V
Max Charge Voltage: 58.8V
Operating Voltage Range: 43 – 58.8V
kWh Capacity: 19kWh
Ah Capacity: 372Ah
Cell Configuration: 16S
Max Continuous Discharge Current: 150A
Max Continuous Power: 7500W
Max Discharge Peak Current: 350A (6 Seconds)
Max Charge Current: 90A
Charge Temperature Range: 0°C (32°F) / 55°C (131°F)
Discharge Temperature Range: -30°C (-22°F) / 55°C (131°F)
Optimal Discharge Temperature Range: 15°C (59°F) / 35°C (95°F)
Storage Temperature Range: -5°C (23°F) / 35°C (95°F) (Max 6 Months)
Weight: 600 lb (272.2 kg)
Depth: 15 in (38.1 cm)
Width: 25.5 in (64.8 cm)
Height: 46.5 in (118.1 cm)
Safety Features: Fuse (300A) & Battery Management System
(Over/Under Voltage, Over Current, &
Over/Under Temperature Protections)
Max Connections: Up To (8) Parallel

BigBattery| 48V KONG ELITE MAX-LiFePO4-372Ah-19.0kWh Manual

BigBattery|48V KONG ELITE MAX-LiFePO4-372Ah-19.0kWh Specs Sheet

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10Warranty

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MAXIMUM CAPACITY! BigBattery’s 48V 19kWh LiFePO4 KONG Elite Max battery is the largest-capacity unit we offer and if you’re looking to build a massive solar or off-grid power system, the KONG Elite Max has everything you need. The KONG Elite Max comes equipped with our advanced BMS, which affords it a wide temperature operating range for all you winter warriors, brand new LiFePO4 cells, and sturdy, caster wheels so you can store your KONG Elite Max wherever you need. With more BMS protections than any battery in its class, you’ll be staying powered, and staying safe through it all. Plus, this unit includes an LED Smart Display so you can always monitor your battery’s health and status. Set your home up with a massive power system with the KONG Elite Max today!

  • 300%

    10 YEAR SAVINGS VS LEAD-ACID

  • 4X 

    CYCLE-LIFE

  •  1/3

    THE SPACE & WEIGHT

  • 100%

    SAFE & RELIABLE

FREQUENTLY ASKED QUESTIONS

Can your batteries be used in series?

We no longer offer our batteries for use in series.

Do your batteries have a thermal management system?

All of our batteries have a thermal management system that is controlled by the BMS (Battery Management System). This Thermal management system will not only prevent the battery from being used if the temperature is too high, but also if the temperature is also too low.

Can I use my OEM charger?

No. Lead acid battery chargers charge at different currents and voltages than our lithium batteries. Using your OEM charger can damage your battery cells and void your battery’s 10 year warranty. We have several chargers optimized for and calibrated to every battery we sell.

Why does the voltage drop when unplugging the charger?

The voltage drop that you experienced is called the “bubble voltage” and is perfectly normal for Lithium Batteries. LiFePO4 batteries behave differently than other battery chemistries. The Voltage vs Capacity is not linear. For example, if you have a voltage between (13.3 - 14.6) or (26.6 - 29.2) or (53.6 - 58.4)  you will have more than 99% of the capacity. This essentially means that “Bubble Voltage” contains less than 1% of the entire capacity and the drop when a load is placed is instant.

Can I leave my batteries outside?

No. Our batteries are not marine rated or weather proof, so leaving them out under the sun all day or in the rain can damage the batteries. (This type of damage is not covered under the 10 year warranty.

How many years will my battery last?

Lithium Iron Phosphate (LifePO4) batteries can be cycled from 3000 to 7000 times. If you cycle the battery daily with an 80% DoD (Depth of Discharge), then you can get even more than 10 years of use from your battery.

Is BigBattery compatible with all Inverters and Charger Controllers?

Our batteries work great with almost all inverter/charger controller brands. The only brand we are not compatible with is RENOGY. Please confirm that your inverter can be set to the operating parameters of the battery you’re interested in before purchasing. Parameters can be found as a downloadable PDF spec sheet on every battery product page.

How do I install my battery?

All of our batteries come with free ring terminals that can be used to connect your battery to your inverter, cart, or busbar system. We also sell a parallel busbar that can be used in tandem with the included ring terminals to parallel multiple batteries.

What is the difference between the 12 A and the Upgraded Charger?

Upgraded Charger:

  • Charging Current: 15A
  • Input Voltage: 110V / 220V
  • Output Voltage: 58.8v
  • Charging Time: 5 h (approx)
  • On-Board Charger: Yes
  • Protection: IP65

Does Big Battery sell used/surplus batteries?

In the past Big Battery sold refurbished batteries, such as solar batteries made from recertified Nissan Leaf modules. As of the year 2020, all batteries sold are new, never-previously-cycled batteries that come with a complimentary 10 year warranty.

How long before my order ships?

It can take anywhere from a week to no more than two weeks for shipment. This time allows us to assemble, test, and inspect each battery prior to shipping.

Why does shipment take so long?

We build every battery upon order, so shipment may take anywhere from a week to no more than two weeks.This is to allow us to assemble, test, and inspect every unit prior to shipment.

What does your 10 year warranty cover?

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