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. 829-7069
Mfr. Part No.STCC2540IQTR
HK$8.312
Each (In a Pack of 10)
units
- Surface Mount Battery Charge Controller IC VFQFPN 16 4.5 to 5.5 V 3.1 x 3.1 x 0.75mm 3.1mm 3.1mm 0.75mm +85 °C 2.8A 5.5 V -40 °C
RS Stock No. 165-5656
Mfr. Part No.STCC2540IQTR
HK$4.537
Each (On a Reel of 3000)
units
- Surface Mount Battery Charge Controller IC VFQFPN 16 4.5 to 5.5 V 3.1 x 3.1 x 0.75mm 3.1mm 3.1mm 0.75mm +85 °C 2.8A 5.5 V -40 °C
RS Stock No. 914-2917
Mfr. Part No.BQ51025YFPT
HK$58.35
Each
units
- Surface Mount - DSBGA 42 -0.3 → 20 V 3.58 x 2.87 x 0.31mm 3.58mm 2.87mm 0.31mm +125 °C 2A 10 V -40 °C
RS Stock No. 162-9704
Mfr. Part No.BQ51025YFPT
HK$36.575
Each (On a Reel of 250)
units
- Surface Mount Battery Charge Controller IC DSBGA 42 -0.3 to 20 V 3.58 x 2.87 x 0.31mm 3.58mm 2.87mm 0.31mm +125 °C 2A 10 V -40 °C
RS Stock No. 189-1239
Mfr. Part No.M4T28-BR12SH1
HK$47.95
Each
units
Lithium-CF Through Hole Battery Backup IC SNAPHAT 4 2.8 V 21.84 x 14.99 x 7.75mm 21.84mm 14.99mm 7.75mm +70 °C - - 0 °C
RS Stock No. 920-6358
Mfr. Part No.M4T28-BR12SH1
HK$48.108
Each (In a Tube of 23)
units
Lithium-CF Through Hole Battery Backup IC SNAPHAT 4 2.8 V 21.84 x 14.99 x 7.75mm 21.84mm 14.99mm 7.75mm +70 °C - - 0 °C
RS Stock No. 817-5874
Mfr. Part No.BQ24650RVAT
HK$48.28
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. 912-6808
Mfr. Part No.MCP73832T-2DCI/OT
BrandMicrochip
HK$4.252
Each (On a Reel of 3000)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC SOT-23 5 3.75 to 6 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm +85 °C 500mA 4.232 V -40 °C
RS Stock No. 738-6629
Mfr. Part No.MCP73832T-2DCI/OT
BrandMicrochip
HK$4.934
Each (In a Pack of 5)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC SOT-23 5 3.75 → 6 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm +85 °C 500mA 4.232 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. 827-9285
Mfr. Part No.BQ24250RGET
HK$29.615
Each (In a Pack of 2)
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. 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. 517-0514
Mfr. Part No.BQ2002TPN
HK$20.45
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. 809-9853
Mfr. Part No.ADP2291ARMZ-R7
HK$32.88
Each (In a Pack of 2)
units
Lithium-Ion Surface Mount Battery Charge Controller IC MSOP 8 - 3.2 x 3.2 x 0.95mm 3.2mm 3.2mm 0.95mm +85 °C 1.5A 4.2 V -40 °C
RS Stock No. 714-0861
Mfr. Part No.M4T32-BR12SH6
HK$74.02
Each
units
Lithium-CF Through Hole Battery Backup IC SNAPHAT 4 3 V 21.84 x 18.03 x 8.51mm 21.84mm 18.03mm 8.51mm +85 °C - - -40 °C
RS Stock No. 545-6852
Mfr. Part No.LT1512CN8#PBF
HK$81.99
Each
units
Lead-Acid, Lithium-Ion, NiCD, NiMH Through Hole Battery Charge Controller IC PDIP 8 2.7 → 29 V 10.16 x 6.48 x 3.3mm 10.16mm 6.48mm 3.3mm +70 °C - - 0 °C
RS Stock No. 912-2897
Mfr. Part No.MCP73832T-2ACI/OT
BrandMicrochip
HK$4.252
Each (On a Reel of 3000)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC SOT-23 5 3.75 to 6 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm +85 °C - - -40 °C
RS Stock No. 628-3734
Mfr. Part No.MCP73826-4.1VCHTR
BrandMicrochip
HK$7.932
Each (In a Pack of 5)
units
Lithium-Ion Surface Mount Battery Charge Controller IC SOT-23A 6 4.5 → 5.5 V 3 x 1.75 x 1.45mm 3mm 1.75mm 1.45mm +125 °C - 4.141 V -40 °C
RS Stock No. 923-1452
Mfr. Part No.ICL7673CBAZA
HK$19.03
Each (In a Tube of 98)
units
- Surface Mount Battery Backup IC SOIC 8 - 5 x 4 x 1.5mm 5mm 4mm 1.5mm +70 °C - - 0 °C
RS Stock No. 168-6814
Mfr. Part No.M4T32-BR12SH6
HK$73.083
Each (In a Tube of 23)
units
Lithium-CF Through Hole Battery Backup IC SNAPHAT 4 3 V 21.84 x 18.03 x 8.51mm 21.84mm 18.03mm 8.51mm +85 °C - - -40 °C