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19V Super High Capacity (504 Wh) Rechargeable Battery CP400-19V
19V  Super High Capacity (504 Wh) Rechargeable Battery CP400-19V

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Regular Price: US$799.00
Sale Price: US$499.95
Condition: Brand New
Warranty: 1 Year Warranty

Stock Status:In Stock

Product Code: BX3699-19V

This power pack comes with a super high capacity light weight rechargeable lithium ion battery ( 36V 114Ah or 504Wh) and a BiXPower 19V DC converter that can convert battery variable output voltage to 19V constant stable regulated output voltage.


Battery Features:

Small Size and Light Weight:

This battery weighs only around 5 pounds.
Using a Lithium-ion battery offers many advantages over older SLA (Sealed Lead Acid) batteries because of Lithium-ion's high energy density, small size, and low weight. A typical Lithium-ion battery may only be 1/5 of the weight and 1/2 of the size compared to a same capacity traditional heavy bulky Sealed Lead Acid batter.

ithium-ion Battery vs. Lead Acid Battery Comparisons

Battery Type

Lithium ion Battery

Lead Acid Battery

Voltage fluctuation in working

Remains stable with different output

Voltage fluctuation based on output

Cycle Life
(Residual capacity over 5%)

500 ~700 times

150~300 times


Very stable and very little affection by output current

Suffer a big affection in by output current. Capacity will be much smaller than rated capacity when output current is large.

Depth Of Discharge (D.O.D.)


50% ~ 60%

Self discharge rate (per month)

1~1.5% (Capacity remains over 80% even the battery is idled for one year)

30% (Battery capacity drops near to zero if it is unused for 3 months)

Fast charge capability

Charge to full capacity in about 6 hours

It needs 8 ~ 12 hours to fully charge the battery

Discharge working temperature ℃



Memory effective



Thermal stability



Weight (Compare to the same capacity)

1/4 of weight to lead acid battery

comparatively heavier weight


Any direction

Upright position is necessary


Built-in safety protection function

Danger of acid leakage

Environmental conform-ability

Conforms to RoHs standard

Violates RoHs standard;Lead and sulphate acid are pollutants

Disposition of used battery

Lithium-ion batteries are generally not considered an environmental hazard because they do not contain lithium metal. The United States government labels them as non-hazardous waste and does not oppose them being discarded together with the trash that makes up the local waste stream.

Needs special recycling after treatment utility

LED Display:

The Four-level LED indicates current power status.

AC Charger:

This battery comes with its own AC charger that can charge the battery from any 110V ~ 240V AC power source.

Safety Features:
  • Water-resistant and firm ABS plastic casing.
  • Built-in PCB protection.
  • Prevent short circuit, over-current, over-heat, over-charge, over-discharge.
  • The internal pack is stabilized by braces, thereby avoiding mechanical accidents caused by vibration.

Model No.
  • BX3699

  • Lithium-ion
  • Nominal Voltage: 36 V
  • Minimum Voltage: 30V
  • Maximum Voltage: 42.5V
  • 14Ah @ 36V
  • 504 Watt-hour
  • 10S4P
Inner Resistance
  • ≤75 mΩ
Charge Voltage Limit
  • 42.5V
Max. Charge Current
  • 3 A
Continuous Discharge Current
  • 13 A
Burst Discharge Current
(up to 10 minutes)
  • 15 A
  • 245.00 x 110.00 x 75 mm
  • ( or 9.8" x 4.4" X 3")
  • 2.45 kg (or 5.5pounds)
Operate Temp. Charge
  • 0~45 ℃
Operate Temp. Discharge
  • -20~60 ℃
Storage Temp.
  • -20~40 ℃
Cycle Life
  • 500 times
PCB Safety Function
  • Cell balancing
  • Over-discharge
  • Over-current protection
  • Over-charge
  • Temperature protection
  • Secondary protection

19V DC to DC Converter Features:

It can directly connect to a 36V lithium ion battery or any battery with output voltage range between 28V to 45V. Its maximum output is 6 Amps.
  • Small size: 78 x 36 x 24mm ( or 3.2" x 1.4" x 1")
  • Light weight: 180 g ( or 6.5 oz)

Technical Specifications:
  • Acceptable Input DC Voltage Range : 28V ~ 45V
  • Output voltage: 19V
  • Output current: Max. 6A*
  • Efficiency: > 90%
  • Safety Protections: Over Current & Over Voltage Protection
  • Short Circuit Protection: Yes
  • Small size: 78 x 36 x 24mm ( or 3.2" x 1.4" x 1")
  • Light weight: 180 g ( or 6.5 oz)

*6A is its maximum output current, not actual output current. Actual output current depends on the device's requirements. For example, if your device requires 2 Amps, it will output 2 Amps.
The DC to DC power converter can convert DC power from the battery to 19V power output.
Compare to similar DC converters on market, BiXPower has added many extra safety protection functions on this converter, such as

1. Output over current protection
2. Output over voltage protection
3. Output over load protection, Auto-recovery when device is back to normal operating,
4. Over-temperature.(V) --- Chip IC has the over heating protection function.
5. Output Short Circuit protection

Output: The output connector is a 5.5 x 2.5mm male barrel connector.
Interchangeable connector tips:

The connector on the power adapter output cable is a 5.5 x 2.5mm male barrel connector, which will work with many devices. If you need different size connectors, you may order our C series optional connector tips separately. A connector can plug on the battery output cable to form a new connector.

Use Battery with 19V Converter:

Package contents:
1. One BX3691 battery: 36V 14Ah, or 504 Watt-hour.
2. One Battery AC Charger and power cord
3. One 36V to 19V DC Converter, maximum output 6A.
4. 12 Interchangeable connectors

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