3. Car batteries for car audio
  5. 66160H - 40Ah LTO A-Grade

66160H - 40Ah LTO A-Grade

66160H - 40Ah LTO A-Grade

Technical Highlights

  • Nominal voltage 2.3V, capacity 40Ah, max. discharge current 400A.
  • Optimal charging current 40A, discharge cut-off voltage 1.8-2.0V.
  • Operating temperature -55°C to 65°C, weight approx. 1.25 kg.
  • More technical details
€85.00
€85.00 €85.00
2% discount with credit card
Incl. VAT
Estimated delivery Sep 14 to Sep 17.
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Yinlong-66160H - 40Ah LTO A-Grade-Lithium - LTO-masori-kaufen
€85.00
€85.00 €85.00

66160H - 40Ah LTO A-Grade is a Lithium - LTO cylindrical cell from Yinlong. The cell has a capacity of 40 Ah at a nominal voltage of 2.3 V. Dimensions are 66 x 66 x 160 mm, with a thread length of 202 mm, and a weight of approximately 1.25 kg. Maximum charge and discharge current is 400 A each, optimal at 40 A. Operating temperature range is -55°C to 65°C. Charge cutoff voltage is 2.5–2.65 V (manufacturer's specification 2.8 V) and discharge cutoff voltage is 1.8–2.0 V (manufacturer's specification 1.5 V). Revised contact surfaces for low contact resistance. Tested with at least 40 Ah and AC internal resistance <0.5 mΩ. Optimal operating range is 2.0–2.5 V.

Features
  • Lithium - LTO cylindrical cell
  • Manufacturer: Yinlong
  • Model: 66160H
  • Capacity 40 Ah
  • Nominal voltage 2.3 V
  • A-Grade (new)
  • Revised contact surfaces for low contact resistance
  • AC internal resistance <0.5 mΩ (guaranteed)
  • At least 40 Ah capacity (tested)
Technical Data
  • Weight approximately 1.25 kg
  • Height 160 mm (202 mm with thread)
  • Width 66 mm
  • Depth 66 mm
  • Max. charge current 400 A
  • Optimal charge current 40 A
  • Max. discharge current 400 A
  • Optimal discharge current 40 A
  • Operating temperature -55°C to 65°C
  • Charge cutoff voltage 2.5–2.65 V (manufacturer's specification 2.8 V)
  • Discharge cutoff voltage 1.8–2.0 V (manufacturer's specification 1.5 V)
  • Optimal operating range 2.0–2.5 V
  • Maintenance charging: not recommended; adjustable to 2.25 V per cell with solar charge controllers
  • Voltage behavior: above 2.5 V, the voltage increases more sharply, above 2.6 V very sharply; below 2.0 V similarly
  • Note for very high currents: operating range may need to be further restricted to avoid strong voltage spikes or drops
  • Active balancer is important for cells connected in series
  • System notes: 12 V system – 6 cells; 24 V system – 11 cells; 48 V system – 22 cells

Frequent Questions about 66160H - 40Ah LTO A-Grade

What are the main features of the 66160H - 40Ah LTO A-Grade cell?

The 66160H - 40Ah LTO A-Grade cell from Yinlong is characterized by several specific technical features. With a nominal voltage of 2.3V and a capacity of 40Ah, it offers high energy efficiency. The maximum charge and discharge currents are up to 400A each, with optimal values at 40A. The weight is approximately 1.25 kg with a size of 160 mm in height (202 mm with threads) and a circumference of 66 mm. This cell is suitable for use in extreme temperature ranges from -55°C to 65°C. The final charging voltage varies between 2.5V and 2.65V according to the manufacturer's specifications up to 2.8V.

How does the 66160H - 40Ah LTO differ from LiFePO4 cells?

The 66160H - 40Ah LTO cell offers a number of advantages and disadvantages compared to LiFePO4 cells. LTO cells have a significantly longer lifespan as well as a tenfold higher cycle life. They are extremely safe and allow for very high charge and discharge currents (5C-10C), which is not the case with the lower currents of LiFePO4 cells. Additionally, they are less temperature-sensitive and can be charged even at temperatures below 0°C. However, LTO cells are more expensive, have a lower cell voltage of 2.3V, which requires more cells for the same battery voltage, and they have a higher weight with less capacity.

How does the voltage affect the operation of the 66160H - 40Ah LTO cell?

The voltage has a significant impact on the operating characteristics of the 66160H - 40Ah LTO cell. The optimal operating range is between 2.0V and 2.5V. Exceeding 2.5V causes the voltage to increase significantly; above 2.6V this can become even more pronounced. During discharge, the voltage should not fall below 2.0V to avoid harmful effects. The manufacturer's specifications for the final charging voltage are 2.5V to 2.65V, with a final discharge voltage between 1.8V and 2.0V. For gentle operation, it is advisable to use the recommended voltage values.

What applications are ideal for the 66160H - 40Ah LTO cell?

The 66160H - 40Ah LTO cell from Yinlong is versatile in application. Thanks to its high safety and durability, it is particularly suitable for solar storage, as it is extremely long-lasting and safe. In car hi-fi systems, these cells replace capacitors, thereby providing higher performance. For campers and caravans, the cell technology offers temperature insensitivity, while extremely high currents can be achieved as a starter battery. Additionally, applications in boat batteries or uninterruptible power supplies (UPS) are also possible. For various systems, up to 48V can be realized through appropriate configurations.

How should a balancer for the 66160H - 40Ah LTO cell be set up?

A suitable balancer for the 66160H - 40Ah LTO cell is essential to ensure optimal function in series arrangements. Due to the stresses at high currents during both charging and discharging, the voltage must be maintained within the optimal operating range of 2.0V to 2.5V. A high-quality active balancer reduces voltage instabilities and ensures uniform cell voltages in the battery group. The correct configuration of the balancer helps to prevent excessive voltage rise or drop and maximizes the lifespan of the cells. Connection surfaces are designed to keep the transition resistance minimal.

Can the 66160H - 40Ah LTO be used at low temperatures?

The 66160H - 40Ah LTO cell is ideally suited for operation at low temperatures. It remains functional in a wide temperature range from -55°C to 65°C, ensuring its versatile applicability even in cold environments. Unlike other cell types, such as LiFePO4, LTO technology shows no significant performance degradation at low temperatures and even allows charging below 0°C. This makes it particularly suitable for applications in colder climates or in vehicles exposed to extreme environmental conditions.

What technical advantages does the 66160H - 40Ah LTO offer over conventional batteries?

The 66160H - 40Ah LTO offers a variety of technical advantages over conventional batteries. A standout feature is its extremely long lifespan and cycle stability, making it particularly durable. These cells are extremely safe to operate, and they allow for very high charge and discharge currents between 5C and 10C. They are characterized by a very high calendar life of over 25 years. Lower temperature sensitivity ensures that they can be operated and charged even at temperatures below 0°C, which is often not possible with conventional batteries.

What are the dimensions and weight of the 66160H - 40Ah LTO cell?

The dimensions and weight of the 66160H - 40Ah LTO cell are defined technical specifications that are important for integration into systems. The cell has a height of 160 mm, which rises to 202 mm due to the thread. With a diameter of 66 mm, it fits into various arrangements, such as in automotive or solar applications. Despite its compact design, the cell weighs approximately 1.25 kg, which is typical for energy storage of this type. These parameters are essential for its specific application and installation.

What voltage should not be exceeded when operating the 66160H - 40Ah LTO cell?

The voltage that should not be exceeded during the operating mode of the 66160H - 40Ah LTO cell is 2.6V. This limit is critical, as exceeding this value can lead to a significant increase in voltage, which could pose a risk of damage. The end-of-charge voltage is generally set between 2.5V and 2.65V, adjustable by the manufacturer up to 2.8V. Smooth operation and extension of cell lifespan are ensured by maintaining the voltage within these values, particularly through matched charging technologies and the use of an accurate balancing system.

Why is the 66160H - 40Ah LTO cell particularly suitable for use in vehicles?

The 66160H - 40Ah LTO cell is particularly suitable for use in vehicles due to its technical specifications. Its ability to handle extremely high currents, up to 400A, is ideal for car starter and car hi-fi systems. The wide temperature range of -55°C to 65°C also ensures reliable operation under various weather conditions. The robust design with optimized dimensions of 66 mm in diameter and an efficient discharge capacity of 40Ah offers flexibility for integration into vehicle battery systems and is also well-suited for uneven terrain and mobile applications.

Manufacturer information / responsible person

LTO Store
Andreas Petermann
Erlenstrasse 30
72639 Neuffen
Germany

Contact: info@lto-store.de

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