OKCELL 14S 42AH Smart Battery for Large Heaavy Agri Drone

14S 42Ah Core Performance Parameters

Voltage and Capacity:

51.8 volts nominal voltage (14 strings of Li-ion battery cells) / 42Ah

Composition scheme: 2 parallel 14 strings

Charging and discharging capacity:

Maximum charging current: 60A

Maximum discharging current: 200A

Cycle life: ≥ 400 times (25℃ environment, 2C charging 3C discharging, capacity retention ≥ 80%)

Temperature Adaptation:

Charging environment: 0℃ to 55℃ (battery temperature)

Discharging environment: 20℃ to 60℃ (battery temperature)

Physical Specifications:

Weight: 13kg

Dimensions: 324mm x 109mm x 264mm

Intelligent function design

1. Intelligent storage function (unique)

Trigger condition: monomer voltage >3.90V and idle >4 days

Operation: automatic discharge to storage voltage (≤3.85V/monomer)

Status alert: four LEDs flashing slowly

Intelligent Function Design

OKCELL System Intelligent Storage Function

Trigger condition: monomer voltage >3.90V and idle >4 days

Operation: automatic discharge to storage voltage (≤3.85V/monomer)

Status alert: four LEDs flashing slowly

Drone Battery Safety Protection Mechanism

Real-time Alarm for Charging Abnormalities:

Over-voltage Alarm: LED2 flashing (triggered by voltage ≥4.450V)

Over-temperature Alarm: LED1+LED2 flashing (triggered by temperature ≥75℃)

Over-current Alarm: LED3 flashing (triggered by current ≥65A)

Buzzer Auxiliary Alert: Tick-tock sound in case of abnormality

Software Upgrade Function

Connect to PC via USB interface to update battery programme.

Prohibition of Safe Operation

Prohibited Behaviour:

1. using non-matching charger

2. discharging ambient temperature > 60 ℃ or < 20 ℃

3. short-circuit positive and negative terminals or reverse charging

4. Squeezing/piercing/disassembling the battery (electrolyte is highly corrosive)

5. Working in rain or wet environment

Mandatory Specifications:

1. Long-term storage requires recharging every 3 months (maintain 3.8V3.9V/single)

2. interface stains must be cleaned with a dry cloth

3. Must be landed when the capacity is ≤ 15%.

Key Status Indicator

Battery check (short press button in power off state):

All four lights are on: 88%-100%

Three lights are on and one is flashing: 76%-87%

Only one light is on: 13%-25%

End-of-life reminder:

After 400 cycles, the four lights are always on in red.

Warranty and Maintenance Terms

Warranty Scope:

12 months or 400 cycles (whichever comes first)

Exempted Circumstances:

Overcharging/overdischarging/high-temperature storage

Physical damage or self-disassembly and repair

Improper storage leading to over-discharging (key terms)

End-of-life Requirements:

Deformed/odorous batteries need to be segregated and dealt with as hazardous materials

If you want to know more about drone batteries, please consult us via email okcelltech@gmail.com.