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GS Audio 30-cell LTO Extreme battery pack 225Ah Lithium - LTO
GS Audio

30-cell LTO Extreme battery pack 225Ah

Lithium - LTO

Technical Highlights

  • 30x 45Ah cells, 225Ah capacity, 14.4–15V, 15000–18000W RMS.
  • 15000–18000W RMS, 14.4–15V recommended, 225Ah, 30x 45Ah cells.
  • 15000–18000W RMS, >16,000 cycles, -55–65°C, 2.0–2.5V.
  • More technical details
€3.799,00
€3.799,00 €3.799,00
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Apr 23, - Apr 30,
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GS Audio-30 Zellen LTO Extreme Batteriepack 225Ah-Lithium - LTO-masori-kaufen
€3.799,00
€3.799,00 €3.799,00

30-cell LTO Extreme battery pack 225Ah by GS Audio

The 30 cell LTO Extreme battery pack 225Ah from GS Audio is a Lithium - LTO battery pack. It consists of 30 Extreme cells, each with a capacity of 45 Ah, achieving a total capacity of 225 Ah. The recommended voltage range for the system is between 14.4 and 15 V. The cell type is based on lithium-titanium oxide with a nominal voltage of 2.4 V per cell. This battery pack is designed for power outputs ranging from 15,000 to 18,000 Watts RMS. The lifespan is rated at over 16,000 cycles. The optimal operating range of the LTO cells is between 2.0 and 2.5 V.

Features
  • Lithium - LTO
  • 30 Extreme cells with 45 Ah each
  • Total capacity: 225 Ah
  • Type: Lithium-titanium oxide
  • Recommended voltage: 14.4–15 V
  • Power: 15,000 Watts RMS
  • Power: 18,000 Watts RMS
  • Lifespan: over 16,000 cycles
Technical Specifications
  • Dimensions per cell: 60 mm x 160 mm
  • Weight per cell: approx. 1 kg
  • Nominal voltage per cell: 2.4 V
  • Normal discharge rate: 1C (45 A)
  • Maximum discharge rate: 10C (450 A)
  • Peak discharge rate at 25 degrees Celsius: 1125 A
  • Temperature range: -55 degrees Celsius to 65 degrees Celsius
  • Optimal operating range per cell: 2.0 V to 2.5 V

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Frequently Asked Questions about 30-cell LTO Extreme battery pack 225Ah

What voltage and configuration does the 30-cell LTO Extreme battery pack 225Ah have?

The pack operates in the recommended range of 14.4 to 15 V, which directly results from the LTO cell nominal voltage of 2.4 V. From 30 cells with 45 Ah each, a 6s5p topology is typically derived for 225 Ah capacity: 6 cells in series provide about 14.4 V nominal, and 5 parallel strings add up the capacity to 225 Ah. The optimal operating range per cell is between 2.0 and 2.5 V. At the pack level, this corresponds to about 12.0 to 15.0 V. Above 2.5 V per cell, voltages increase sharply, above 2.6 V very sharply, and below 2.0 V they drop significantly. Therefore, an active balancer is essential for series-connected lithium-titanate cells, especially when charged or discharged at high currents.

What are the continuous current and peak current in real operation?

The 30-cell LTO Extreme battery pack 225Ah is based on 45-Ah LTO individual cells with a 1C nominal discharge of 45 A, a 10C maximum discharge of 450 A, and a peak discharge of 1125 A at 25 degrees Celsius. In the typical 6s5p configuration, the continuous current scales to 225 A at 1C and to 2250 A at 10C, with peaks being possible in aggregate. In reality, conductor cross-sections, connectors, transition resistances, and temperature determine the usable currents. The recommended voltage range of 14.4 to 15 V and the LTO operating range of 2.0 to 2.5 V per cell must be adhered to, as high current draw causes the cell voltage to drop earlier, tightening the usable range. For car audio bursts, the specifications cover load peaks in the range of over 1 kA, as long as thermal conditions and cell balance are appropriate.

What car audio power is the 30-cell LTO Extreme battery pack 225Ah designed for?

GS Audio specifies ideal values of 15000 to 18000 W RMS. With a recommended system voltage of 14.4 to 15 V, this means current requirements in the range of around 1000 to 1200 A under load. LTO cells with a nominal voltage of 2.4 V and 45 Ah per cell deliver very high currents thanks to a 10C discharge specification, while peak discharge of 1125 A per cell at 25 degrees Celsius can represent short-term transients. It is crucial to stay within the optimal operating range of 2.0 to 2.5 V per cell, as voltages can rise or fall sharply outside this window. For musical bursts in SPL and SQL setups, wiring, distribution, and balance across all series cells with an active balancer play a key role in keeping the load stable at 14.4 to 15 V.

How do I charge the LTO battery correctly, and what voltage limits apply?

For the 30-cell LTO Extreme battery pack 225Ah, a recommended voltage range of 14.4 to 15 V applies at the pack level, derived from 2.4 V nominal voltage per cell in a 6s configuration. The optimal cell operating range is between 2.0 and 2.5 V. Above 2.5 V, the cell voltage rises sharply, and above 2.6 V very sharply, which is why a charging cutoff voltage with a margin should be planned. Discharging below 2.0 V should be avoided, as the voltage drops steeply. At high charge or discharge currents, the practically usable range may be narrower. Series-connected LTO cells require an active balancer that continuously equalizes cell voltages to ensure no individual cell exceeds the allowable range. Therefore, charging profiles should be stably regulated to 14.4 to 15 V and operated in a balancer-compatible manner.

What temperature ranges can the 30-cell LTO Extreme battery pack 225Ah withstand?

The individual cells are specified for a temperature range of -55 to 65 degrees Celsius. The peak discharge of 1125 A per cell refers to 25 degrees Celsius, so thermal deviations can affect current capability. In the lower temperature range, internal resistance and voltage drop increase, causing the effective operating range of 2.0 to 2.5 V per cell to be reached more quickly. At high temperatures, cell voltages under load approach critical zones more rapidly, so the 65 degrees Celsius upper limit should be observed. At the recommended system voltage of 14.4 to 15 V, it is advisable to choose positions close to cool air in hot environments and to stagger load peaks. Especially if you enjoy listening to loud music, short breaks or airflow-optimized installations help stabilize performance by limiting thermal drift.

How long does the battery last in cycles, and what does it depend on?

The 30-cell LTO Extreme battery pack 225Ah uses LTO individual cells with a specified lifespan of over 16,000 cycles. This number assumes adherence to the optimal cell range of 2.0 to 2.5 V, which translates to about 12.0 to 15.0 V at the pack level. Above 2.5 V per cell, voltages increase sharply, while below 2.0 V they drop significantly, causing stress on individual cells to rise considerably. An active balancer is therefore mandatory, especially in series configurations, to prevent any cell from drifting into critical ranges. The 1C and 10C discharge currents, as well as peak currents mentioned in the datasheet, should be dissipated thermally and electrically cleanly to ensure that cycle duration is not limited by surges, temperature peaks, or uneven cell loads.

Does the 30-cell LTO Extreme battery pack 225Ah fit in my trunk, and how do I plan the installation?

The individual cell measures 60 mm by 160 mm and weighs about 1 kg. With 30 cells, you calculate around 30 kg total weight plus connectors, holders, and balancer. Without a predefined form factor, you plan the volume based on the 6s5p logic: For example, if you place 6 cells in series in one row, you get about 6 times 160 mm in length and 60 mm in width per row; five parallel rows lead to about 300 mm in width. Alternatively, you can stack the 60 mm side and use the 160 mm as width, which creates a flatter but wider assembly. Ensure firm fixation, adequate airflow, and short, low-resistance connections. Especially when driving high RMS loads, compact busbars and symmetrical leads minimize voltage drops within the pack.

Why is an active balancer mandatory for series-connected LTO cells?

In the 30-cell LTO Extreme battery pack 225Ah, cells work in series, with an optimal operating range of 2.0 to 2.5 V. Even slight differences in capacity and internal resistance can cause individual cells to exceed 2.5 V during charging or drop below 2.0 V during discharging earlier than expected. Above 2.5 V, the voltage increases sharply, over 2.6 V very sharply, and below 2.0 V there is a significant drop - this is critical for the weakest cell. An active balancer shifts charge between the cells and keeps the voltages closely aligned, which is especially important at high currents, where the usable range shrinks further. This way, you efficiently utilize the recommended pack range of 14.4 to 15 V and avoid early cutoff or overvoltage of individual cells.

What are the technical specifications of the cells in the 30-cell LTO Extreme battery pack 225Ah?

The LTO single cell has a nominal voltage of 2.4 V and a capacity of 45 Ah. The recommended discharge rate is 1C, which is 45 A, and the maximum discharge is 10C at 450 A. A peak discharge of 1125 A is specified at 25 degrees Celsius. The cell dimensions are 60 mm by 160 mm, and the weight is around 1 kg. The temperature range is from -55 to 65 degrees Celsius, and the lifespan is over 16,000 cycles. The type is lithium-titanium oxide. The optimal operating range per cell is 2.0 to 2.5 V; outside of this range, the voltages increase or decrease sharply, which is why an active balancer is recommended for series operation. From these values, the pack recommendation of 14.4 to 15 V in a 6s configuration is derived.

How should I behave with very high charging or discharging currents?

In the 30-cell LTO Extreme battery pack 225Ah, the practically usable voltage range shrinks under very high currents. Keep the cell voltage as much as possible within the window of 2.0 to 2.5 V and plan conservatively at the pack level with 14.4 to 15 V as the operating range. Above 2.5 V, the voltage increases sharply, over 2.6 V very sharply, and below 2.0 V it drops quickly. Use an active balancer to ensure that no series cell enters critical areas prematurely. Mechanically, short, wide conductors, solid connectors, and symmetrical current distribution help minimize voltage drops. Thermally, a position close to cool air promotes performance stability. Especially with car audio peaks of 15,000 to 18,000 W RMS, it is worthwhile to plan burst loads so that the cell voltages can recover between transients.

Manufacturer information / responsible person

GS Audio SRL
Ganzerli Steven
Via Matteotti 220/a
San Pesistenzanio MO
Italy

Contact: info@gsaudio.it

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