Battery Management

Battery management devices are designed to work alongside battery powered applications. Adding a battery management IC to an electronic circuit can help to create a more efficient and reliable design which will last longer. Battery management can be used to reduce charging time, whilst enabling safe charging and low standby power usage. As electronic systems become more complex, it is essential to provide support through battery and power management ICs.

Battery management can be used with different types of battery, depending on the device. These battery types include lead-acid, Li-Ion, Lithium-Polyment, NiCD and NiMH.

Types of Battery Management IC

  • Battery Chargers are designed to help charge the battery quickly whilst keeping it cool. Chargers work with rechargeable battery packs.
  • Battery Fuel Gauges are available to give information on the charge of a battery. The fuel gauge gives information on the amount of charge available and the health status.
  • Battery Monitors (or Battery Backup Managers) provide monitoring and supervision of the battery performance. They can monitor the voltage, current and temperature to prevent any damage to the battery. Battery backup managers offer backup power from the battery in case of a power outage.

Where are Battery Management ICs used?

These devices are found in most systems that use a rechargeable battery power supply, such as portable and wearable devices. Applications include:

  • Smartphones
  • Laptops
  • Tablets
  • Cameras
  • Battery Powered Tools
  • Electric cars
  • Solar Panels
  • Automation

What is a BMS?

BMS stands for Battery Management System. This is an electronic circuit that monitors and protects a rechargable battery. Battery Management Systems feature devices such as a charge controller, gauge and surge protector, to ensure that the battery does not operate outside of its capabilities. Therefore a BMS provides protection and increases the potential lifespan of the battery.


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Description Price Battery Type Mounting Type IC Type Package Type Pin Count Typical Operating Supply Voltage Dimensions Length Width Height Maximum Operating Temperature Maximum Output Current Maximum Output Voltage Minimum Operating Temperature
RS Stock No. 732-8730
Mfr. Part No.MAX1555EZK+T
kr 16,74
Each
Units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC SOT-23 5 3.7 to 7 V 3 x 1.65 x 0.9mm 3mm 1.65mm 0.9mm +85 °C 280mA 4.2 V -40 °C
RS Stock No. 827-9447
Mfr. Part No.BQ29200DRBT
kr 3,399
Each (In a Pack of 10)
Units
- Surface Mount Battery Fuel Gauge IC SON 8 4 to 10 V 3.15 x 3.15 x 0.95mm 3.15mm 3.15mm 0.95mm +85 °C - 9.5 V -40 °C
RS Stock No. 827-9324
Mfr. Part No.BQ24617RGET
kr 59,25
Each (In a Pack of 2)
Units
- Surface Mount Battery Charge Controller IC VQFN 24 5 to 24 V 4.15 x 4.15 x 0.95mm 4.15mm 4.15mm 0.95mm +85 °C 10A 6.3 V -40 °C
RS Stock No. 162-8491
Mfr. Part No.BQ24725ARGRT
kr 18,986
Each (On a Reel of 250)
Units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC VQFN 20 4.5 to 24 V 3.65 x 3.65 x 0.95mm 3.65mm 3.65mm 0.95mm +85 °C 8.128A 19.2 V -40 °C
RS Stock No. 191-6979
Mfr. Part No.MAX17205G+00E
kr 27,20
Each (In a Pack of 5)
Units
Lithium-Ion Surface Mount Battery Fuel Gauge IC TDFN 14 4.2 to 20 V 3.1 x 3.1 x 0.75mm 3.1mm 3.1mm 0.75mm +85 °C - - -40 °C
RS Stock No. 190-0094
Mfr. Part No.DS2438Z+
kr 43,27
Each (In a Pack of 2)
Units
Lithium-Ion, NiCD, NiMH Surface Mount Battery Fuel Gauge IC SOIC 8 2.4 to 10 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm +85 °C - - -40 °C
RS Stock No. 133-0139
Mfr. Part No.BQ27426YZFT
kr 9,845
Each (In a Pack of 2)
Units
- Surface Mount Battery Fuel Gauge IC DSBGA 9 -0.3 to 2 V 1.65 x 1.61 x 0.27mm 1.65mm 1.61mm 0.27mm +85 °C -3 mA, 500µA 0.6 V -40 °C
RS Stock No. 121-9703
Mfr. Part No.BQ24075RGTT
kr 12,907
Each (On a Reel of 250)
Units
Lithium-Ion Surface Mount Battery Charge Controller IC QFN 16 4.35 to 6.4 V 3.15 x 3.15 x 0.95mm 3.15mm 3.15mm 0.95mm +85 °C 4.5A 5.6 V -40 °C
RS Stock No. 922-4719
Mfr. Part No.BQ2057CSN
kr 15,923
Each (In a Tube of 75)
Units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC SOIC 8 4.5 to 15 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm +70 °C - - -20 °C
RS Stock No. 817-5916
Mfr. Part No.BQ51013BRHLT
kr 35,98
Each
Units
- Surface Mount Battery Charge Controller IC VQFN 20 - 4.65 x 3.65 x 0.95mm 4.65mm 3.65mm 0.95mm +150 °C - - -40 °C
New
RS Stock No. 216-7787
Mfr. Part No.MAX17320X22+T
kr 32,582
Each (In a Pack of 5)
Units
Lithium-Ion, Lithium-Polymer Surface Mount - WLP 30 4.2 → 18 V - 2.5mm - - - - - -
RS Stock No. 121-9197
Mfr. Part No.BQ2057WSN
kr 18,938
Each (In a Tube of 75)
Units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC SOIC 8 4.5 to 15 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm +70 °C - - -20 °C
RS Stock No. 545-6830
Mfr. Part No.LT1510CS#PBF
kr 89,25
Each
Units
Lithium-Ion, NiCD, NiMH Surface Mount Battery Charge Controller IC SOIC 16 7 to 30 V 10.01 x 3.99 x 1.48mm 10.01mm 3.99mm 1.48mm +70 °C - - 0 °C
New
RS Stock No. 216-7786
Mfr. Part No.MAX17320X22+T
kr 19,699
Each (On a Reel of 2500)
Units
Lithium-Ion, Lithium-Polymer Surface Mount - WLP 30 4.2 → 18 V - 2.5mm - - - - - -