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. 817-5874
Mfr. Part No.BQ24650RVAT
HK$51.03
Each
units
Lead-Acid, LiFePO4, Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC VQFN 16 5 to 28 V 3.6 x 3.6 x 0.95mm 3.6mm 3.6mm 0.95mm +85 °C - 2.1 V -40 °C
RS Stock No. 162-8100
Mfr. Part No.BQ24650RVAT
HK$34.054
Each (On a Reel of 250)
units
Lead-Acid, LiFePO4, Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC VQFN 16 5 to 28 V 3.6 x 3.6 x 0.95mm 3.6mm 3.6mm 0.95mm +85 °C - 2.1 V -40 °C
RS Stock No. 162-8480
Mfr. Part No.BQ24250RGET
HK$18.509
Each (On a Reel of 250)
units
Lithium-Ion Surface Mount Battery Charge Controller IC VQFN 24 4.35 to 10.5 V 4.15 x 4.15 x 0.95mm 4.15mm 4.15mm 0.95mm +85 °C 4A 4.2 V -40 °C
RS Stock No. 662-2019
Mfr. Part No.BQ24081DRCT
HK$17.346
Each (In a Pack of 5)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC SON 10 4.5 → 6.5 V 3 x 3 x 0.9mm 3mm 3mm 0.9mm +125 °C 1A - -40 °C
RS Stock No. 162-8474
Mfr. Part No.BQ24093DGQT
HK$7.529
Each (On a Reel of 250)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC MSOP 10 4.45 to 6.45 V 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm +150 °C 1A 4.20 V -40 °C
RS Stock No. 817-5871
Mfr. Part No.BQ24616RGET
HK$52.21
Each
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC VQFN 24 5 to 28 V 4.15 x 4.15 x 0.95mm 4.15mm 4.15mm 0.95mm +85 °C 10A 2 V -40 °C
RS Stock No. 662-2117
Mfr. Part No.BQ2000TSN-B5
HK$48.52
Each
units
Lithium-Ion, NiCD, NiMH Surface Mount Battery Charge Controller IC SOIC 8 5 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm +70 °C - - -20 °C
RS Stock No. 121-9703
Mfr. Part No.BQ24075RGTT
HK$12.339
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. 121-9706
Mfr. Part No.BQ24616RGET
HK$30.323
Each (On a Reel of 250)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC VQFN 24 5 to 28 V 4.15 x 4.15 x 0.95mm 4.15mm 4.15mm 0.95mm +85 °C 10A 2 V -40 °C
RS Stock No. 817-5919
Mfr. Part No.BQ76925PW
HK$21.022
Each (In a Pack of 5)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Fuel Gauge IC TSSOP 20 26.4 V 6.6 x 4.5 x 1.05mm 6.6mm 4.5mm 1.05mm +85 °C - 5.5 V -25 °C
RS Stock No. 517-0514
Mfr. Part No.BQ2002TPN
HK$21.92
Each
units
NiCD, NiMH Through Hole Battery Charge Controller IC PDIP 8 5 V 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm +70 °C - - 0 °C
RS Stock No. 827-9251
Mfr. Part No.BQ24093DGQT
HK$12.128
Each (In a Pack of 5)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC MSOP 10 4.45 to 6.45 V 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm +150 °C 1A 4.20 V -40 °C
RS Stock No. 817-5815
Mfr. Part No.BQ24075RGTT
HK$22.46
Each (In a Pack of 5)
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 1.5A 5.6 V -40 °C
RS Stock No. 162-8111
Mfr. Part No.BQ76925PW
HK$20.796
Each (In a Tube of 70)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Fuel Gauge IC TSSOP 20 26.4 V 6.6 x 4.5 x 1.05mm 6.6mm 4.5mm 1.05mm +85 °C - 5.5 V -25 °C
RS Stock No. 162-4645
Mfr. Part No.BQ2002TPN
HK$17.366
Each (In a Tube of 50)
units
NiCD, NiMH Through Hole Battery Charge Controller IC PDIP 8 5 V 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm +70 °C - - 0 °C
RS Stock No. 162-6904
Mfr. Part No.BQ24081DRCT
HK$10.846
Each (On a Reel of 250)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC SON 10 4.5 to 6.5 V 3 x 3 x 0.9mm 3mm 3mm 0.9mm +125 °C 1A - -40 °C
RS Stock No. 162-6882
Mfr. Part No.BQ2000TSN-B5
HK$38.254
Each (In a Tube of 75)
units
Lithium-Ion, NiCD, NiMH Surface Mount Battery Charge Controller IC SOIC 8 5 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm +70 °C - - -20 °C
RS Stock No. 162-6895
Mfr. Part No.BQ2057WTS
HK$14.369
Each (In a Tube of 150)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC TSSOP 8 4.5 to 15 V 3 x 4.4 x 1.15mm 3mm 4.4mm 1.15mm +70 °C - - -20 °C
RS Stock No. 162-8499
Mfr. Part No.BQ27425YZFT-G2A
HK$16.00
Each (On a Reel of 250)
units
- Surface Mount Battery Fuel Gauge IC DSBGA 15 2.8 to 4.5 V 2.64 x 1.986 x 0.275mm 2.64mm 1.986mm 0.275mm +85 °C 5mA 2.6 V -40 °C
RS Stock No. 827-9254
Mfr. Part No.BQ24074RGTT
HK$22.46
Each (In a Pack of 5)
units
Lithium-Ion Surface Mount Battery Charge Controller IC QFN 16 4.35 to 10.2 V 3.15 x 3.15 x 0.95mm 3.15mm 3.15mm 0.95mm +85 °C 4.5A 4.4 V -40 °C