ICR18650-30B Datasheet – 2950mAh, Rechargeable Cell – Samsung

This is is a type of lithium-ion rechargeable battery.

Part Number: ICR18650-30B

Function: Lithium-ion Rechargeable Cell, Nominal Capacity : 2950mAh (0.2C, 2.75V discharge)

Cell Dimension : Height : 65.00mm max, Diameter : 18.40mm max

Manufacturer: Samsung


ICR18650-30B samsung



1. Standard Charge

This “Standard Charge” means charging the cell with charge current 1475mA and constant voltage 4.35V at 25℃  for 3hours.

2. Standard Discharge Capacity

The standard discharge capacity is the initial discharge capacity of the cell, which is measured with discharge current of 590mA with 2.75V cut-off at 25℃  within 1hour after the standard charge.

Standard Discharge Capacity    ≥   2850mAh

3. Initial internal impedance

Initial internal impedance measured at AC 1kHz after rated charge.
Initial internal impedance    ≤   100mΩ

4. Temperature Dependence of Discharge Capacity

Capacity comparison at each temperature, measured with discharge constant current 590mA and 2.75V cut-off after the standard charge is as follows.



ICR18650-30B datasheet specs


1. High energy density and high capacity
2. Long cycle life
3. Low self-discharge rate
4. Wide range of operating temperatures


1. Requires a protection circuit to prevent overcharging and over-discharging
2. Can be hazardous if not handled properly
3. More expensive than some other battery types

ICR18650-30B Datasheet


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BQ737 Datasheet PDF – Battery SMBus Charge Controller

What is BQ737?

This is a battery charger and system power path management device designed and manufactured by Texas Instruments. The device is used to charge and manage the power flow of batteries in a range of applications, including notebooks, tablets, and other portable devices.

The BQ737 supports multi-cell battery packs and can charge batteries with up to 4 cells in series. It also features a programmable charge algorithm that allows for the optimization of charging performance and battery life.

Part Number: BQ24737

Function: 2-4 Cell Li+ Battery SMBus Charge Controller

Package: VQFN20 Type

Manufacturer: Texas Instruments


BQ737 datasheet


The BQ737 is a high-efficiency, synchronous battery charger, offering low component count for space-constraint, multi-chemistry battery charging applications. SMBus controlled input current, charge current, and charge voltage DACs allow for high regulation accuracies that can be programmed by the system power management micro-controller.


BQ737 pinout


1. Programmable Adapter Detection and Indicator
2. Integrated Soft Start
3. Integrated Loop Compensation
4. Real Time System Control on ILIM pin to Limit Charge Current


1. Portable Notebook Computers, UMPC, Ultra-Thin Notebook, and Netbook
2. Personal Digital Assistant
3. Handheld Terminal
4. Industrial and Medical Equipment
5. Portable Equipment

Other data sheets are available within the file: BQ24737, BQ24737RGRR, BQ24737RGRT

BQ737 Datasheet PDF

BQ737 pdf


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