Lithium battery now plays a significant role in our daily lives for using several types of electronic devices. In general, the one battery cell on the market we found is around 3.7V; however, in several cases, the operation of voltage vary maybe a little larger. The voltage isn't enough to use. In several high-voltage batteries, 48V lithium-ion battery has been widely used. It really helped us in various ways.
Compared with lead-acid accumulator,48V Lithium Battery has the benefits of small size, lightweight, outstanding temperature ability, high charging and discharging potency, sensible safety and stability, long service life, energy-saving, and environmental protection. According to the anode material, a 48V metal particle battery is often divided into ternary metal battery, metal iron phosphate battery, metal titanate battery.

Introduce 48V lithium battery performance

Lithium power battery is a battery generally used on power-driven appliances. Compared with other types of batteries, lithium power battery can be used in electric tools, geological prospecting, UAV, self-balancing car, etc. Even the energy storage battery can also belong to lithium power battery on the broader concept. Compared to the other types of battery, lithium power battery has unique requirements, such as high energy density, high volumetric specific energy ratio, high rate discharging, longer cycle life, better security, and wide temperature range as well.
Compared with a lead-acid battery, the 48V lithium-ion battery has more advantages.

  • It is small in size, can carry easier because of having lightweight,
  • outstanding temperature adaptability,
  • good safety and stability
  • long-lasting battery life
  • energy saving and environmentally friendly.
  • high charging and discharging efficiency,

Connection

For connection, some people use batteries as high as 100 volts, but it is safe to stick to a medium-sized 36V battery usually. Of course, the same principles apply for any voltage battery, so anyone just scales up the battery to build 48V, 60V, or even higher voltage battery.

To reach the intended voltage of 36V, it is recommended to connect a number of 18650 cells in series. Lithium-ion battery cells are nominally rated at 3.6 or 3.7V, meaning to reach 36V nominal. It needs ten cells in series or more if you want. The industry abbreviation for series is ‘s,’ so this pack will be known as a “10S pack” or ten cells in series for a final pack voltage of 36V
Then, it is needed to wire multiple 18650 cells in parallel to reach the desired pack capacity. Each of the cells is used there rated at 2,900 mAh. The industry abbreviation for parallel cells is ‘p,’ meaning that my final pack configuration is considered a “10S3P pack” with a final specification of 36V 8.7AH.

Recommendation

Here are some recommendations for a 48-volt Lithium-ion battery pack.
i) 48V 10Ah LiFePO4 Battery for Detection Equipment Power Supply It contains

  • Nominal voltage:48.0V
  • Nominal capacity:10Ah
  • Dimension:245×145×90mm

ii) 48V 20Ah LiFePO4 Battery for Switching Power Supply It contains

  • Nominal voltage:48.0V
  • Nominal capacity:20Ah
  • Battery cell:LiFePO4 LA148F20C/3.2V/20Ah
  • Dimension:470*350*90mm（Max）

iii) 48V 100Ah 26650 AGV LiFePOBattery
it contains

  • Nominal voltage:48.0V
  • Nominal capacity:100AhBattery cell:26650/3.2V/3300mAh
  • Dimension:620*325*240mm

Charger

A 48V lithium-ion device is factory-made to charge a lithium-ion battery at a nominal voltage of 48V. The lithium-ion battery includes high demand for charging and requirements for a protection circuit. Therefore, a lithium-ion device sometimes has high management preciseness and might charge the lithium-ion battery at constant current and constant voltage. The li-ion device has overvoltage protection and temperature protection besides. It's outwardly associated with a current-limiting kind charging power offer, which may perform safe and effective fast charging for single li-ion battery cells.

The most significant factor is that it can achieve very low power dissipation without inductance. It contains an 8-pin μMAX package. The charging control precision reaches 0.75%, which can realize pre-charging too. The maximum charging time limit provides secondary protection for lithium-ion batteries. The floating charging mode of lithium-ion battery charger can maximize the battery capacity as demand.

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