$380.00

The Lithium-ion Battery (14.8V, 18Ah) is a high capacity custom battery pack made from high quality 18650 lithium-ion cells designed for use in the BlueROV2, BlueBoat, and fits perfectly inside a 3″ Watertight Enclosure!

In stock

SKU: BR-100842
HS Code: 8506.50.00

Product Description

The Lithium-ion Battery (14.8V, 18Ah) is a high capacity custom battery pack made from high quality 18650 lithium-ion cells designed for use in the BlueROV2, BlueBoat, and fits perfectly inside a 3″ Watertight Enclosure. This 4S (14.8V) battery has a nominal capacity of 18.0Ah, plenty for up to 4 hours of continuous moderate use on the BlueROV2. The lithium-ion cells the battery is comprised of have excellent performance characteristics, as well as a high tolerance for accidental mishandling. The battery is CE (Conformité Européenne) approved, ROHS compliant, and UN38.3 certified. Certificates can be provided upon request.

The especially high capacity of this battery means that is subject to more stringent shipping regulations than our other products. In addition to a hazardous goods shipping surcharge, we are also only able to ship this battery to a small number of countries:

  • Australia
  • Canada
  • India – Delhi, Karnataka, Tamil Nadu, and Telangana ONLY
  • Japan
  • Mexico
  • New Zealand
  • Singapore
  • United States of America (excluding Hawaii, Alaska, and Puerto Rico)

If you are located in a country not listed above, we are unable to ship this battery to you. However, we do have a number of distributors that will be able to supply this battery in other parts of the world:

Product Description

The Lithium-ion Battery (14.8V, 18Ah) is a high capacity custom battery pack made from high quality 18650 lithium-ion cells designed for use in the BlueROV2, BlueBoat, and fits perfectly inside a 3″ Watertight Enclosure. This 4S (14.8V) battery has a nominal capacity of 18.0Ah, plenty for up to 4 hours of continuous moderate use on the BlueROV2. The lithium-ion cells the battery is comprised of have excellent performance characteristics, as well as a high tolerance for accidental mishandling. The battery is CE (Conformité Européenne) approved, ROHS compliant, and UN38.3 certified. Certificates can be provided upon request.

The especially high capacity of this battery means that is subject to more stringent shipping regulations than our other products. In addition to a hazardous goods shipping surcharge, we are also only able to ship this battery to a small number of countries:

  • Australia
  • Canada
  • India – Delhi, Karnataka, Tamil Nadu, and Telangana ONLY
  • Japan
  • Mexico
  • New Zealand
  • Singapore
  • United States of America (excluding Hawaii, Alaska, and Puerto Rico)

If you are located in a country not listed above, we are unable to ship this battery to you. However, we do have a number of distributors that will be able to supply this battery in other parts of the world:

  • 1 x Lithium-ion Battery (14.8V, 18Ah)

Specifications

ParameterValue
Electrical
Nominal Voltage14.8V
Nominal Capacity18.0Ah266.4Wh
Cell Configuration4S6P
Maximum Continuous Current Draw*60A3.3C
Maximum Burst Current Draw (10s)*132A7.3C
Maximum Charge Current20A1.1C
Minimum Safe Voltage12V3.0V/Cell
Discharge ConnectorXT90S
Balance Plug5 pin JST-XH
Thermistor Plug2 pin JST-XH
Thermistor TypeNTC, β = 3435K
Thermistor ResistanceR 25  = 10kΩ, ±1% (at 25°C)
Thermistor Working Temperature-40-110°C-40-230°F
Physical (Typical)
Diameter74.2 ±0.3 mm2.92 ±0.01 in
Length146 ±2 mm5.75 ±0.08 in
Lead Length75 ±5 mm2.95 ±0.2 in
Weight1152 g2.54 lb
*see Discharging information in the "Guides" tab for more information

3D Models

BATTERY-LI-4S-18AH-R1 (.zip)

Documents

Battery MSDS (.pdf)

UN38.3 Test Report (.pdf)

INR18650-30Q Data Sheet (.pdf)

Revision History

15 December 2023

  • BR-100842 sales resumed

18 July 2023

  • BATTERY-LI-4S-18AH-R3-RP SKU changed to BR-100842

23 September 2021

  • BATTERY-LI-4S-18AH-R3-RP discontinued

11 July 2019

  • R3 - Initial Release

Safety

Lithium-ion batteries have a high energy density and must be treated with care to ensure safe operation and a long lifespan.

  • Avoid discharging below 3.0 V per cell (12.0 V total voltage) and never below 2.5 V per cell (10.0 V total voltage)
  • Never charge over 4.20 V per cell (16.8 V total voltage)
  • Do not puncture, crush, cut, or disassemble
  • Do not burn or expose to temperatures above 60°C (140°F)
  • Always use a lithium-ion compatible balance charger
  • Do not leave unattended while charging
  • Do not exceed maximum charge (20 A) or discharge (60 A*) rate
  • Do not pick up by discharge leads, always handle by gripping battery body.

*See Discharging section below for more information.

Additional Lithium-ion Safety Information

Charging

The Blue Robotics H6 PRO Lithium Battery Charger is recommended for use with this battery. It is preconfigured with the correct settings to safely charge all Blue Robotics batteries.

To charge this battery using the Blue Robotics H6 PRO Lithium Battery Charger, change the cell count option to 4S (14.8V) and start the charging task. Make sure to keep it away from flammable materials and always monitor the battery as it charges, discontinue charging if it becomes hot or changes in appearance. You can view the full H6 PRO Charger user instructions here.

If you are not using the Blue Robotics H6 Pro Lithium Battery Charger, use the following instructions:

Only use a lithium-ion/polymer compatible balance charger to charge this battery, attempting to use another type of charger will damage the battery. The charger should have a balance charge function and be able to balance a lithium battery with 4 cells (4S). Make sure to keep it away from flammable materials and always monitor the battery as it charges, discontinue charging if it becomes hot or changes in appearance.

Use your charger’s lithium polymer (LiPo) charging setting and set it to 4S (14.8V). The LiPo setting will charge the battery to the fully charged voltage of 4.20 V per cell, 16.8 V total battery voltage. We recommend balance charging/balancing the battery at every charge to keep all cells at the same level of charge. If quick charging is a priority, balancing should be done at least every third charge. Cells that are not properly balanced may become overcharged. An overcharged cell is unstable and can lead to battery failure, property damage, or personal injury.

This battery can be safely charged at up to 20 A, which will bring it back up to full charge in about one hour. However, we recommend charging at 10 A regularly in order to maximize capacity and lifespan. A summary of the correct charging settings is provided below.


Lithium-ion Battery (14.8V, 18Ah) Charge Settings
Charge ProfileLiPoNumber of Cells4S
Nominal Voltage14.8 V total / 3.7 V per cellFully Charged Voltage16.8 V total / 4.2 V per cell
Recommended Charge Rate10 AMaximum Charge Rate20 A

Discharging

After charging, connect the XT90S discharge plug to your vehicle, and the battery is ready to use. This battery does not have a built-in battery management system to prevent overdischarging. The battery voltage must be monitored to prevent discharging below the minimum safe voltage level of 12 V.

The battery can sustain a constant discharge of up to 60 A, and up to 132 A in short bursts of up to 10 seconds. Make sure to never short the battery discharge plug or plug it into a circuit that may be shorted.

Note that the maximum safe discharge rating is dependent on adequate cooling to keep the battery below 60°C. If used in an enclosed space without airflow, constant current draw must be decreased appropriately to keep the battery at a safe temperature.

Temperature can be monitored with the integrated 3435 K negative temperature coefficient (NTC) thermistor, which has a resistance of 10 kΩ at 25°C.

Storage

Charge will be lost over time when the battery is stored, and care must be taken to ensure long term storage does not damage the battery. Storage temperature should always be below 60°C (140°F), and the lower, the better. The battery should be stored at about 50% charge, or 3.7 V per cell (14.8 V total). The Blue Robotics H6 Pro Charger, and most lithium-ion/polymer chargers, have a storage setting that will automatically put the battery at the correct voltage for storage. Batteries in storage should be periodically checked and charged to keep each cell above the 3.0 V minimum.

Additional Lithium-ion Storage Information

Relevant Forum Categories

Blue Robotics Forums - Batteries And Chargers

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