4V3.5ah VRLA Rechargeable Battery AGM Lead Acid Battery

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Product Description

Basic Information
Model NO.
4V3.5AH
Nominal Voltage
4V
Discharge Rate
Low Discharge Rate
Shape
Square Battery
Electrolyte
Acid
Rechargeable
Chargeable
Capacity
3.5Ah @ 20hr-rate
Internal Resistance
Approx. 28mΩ
Specification
L90*W34*H60(TH66)mm
Production Capacity
240,000 PCS/Month
Product Description
4V3.5AH VRLA secondary AGM battery
Standard battery is designed for a general purpose. 2FM3.5 is a general purpose battery up to 5 years in float service or more than 260 cycles at 100% discharge in cycle service. As with all batteries, all are rechargeable highly efficient, leak proof and maintenance free.
Cells per Unit2
Normal Voltage4V
Capacity3.5Ah@20Hr-rate to 1.75V per cell @25ºC
WeightApprox. (0.44±3%)kg (0.97lbs)
Maximum Discharge Current35A(5sec)
Operating Temperature RangeDischarge: -20ºC~60ºC | Charge: 0ºC~50ºC | Storage: -20ºC~60ºC
Float Charging Voltage4.5~4.6VDC/unit Average @25ºC
Container MaterialABS(UL94-HB) / *UL94-V0 available
4V3.5ah VRLA Rechargeable Battery Dimensions
Performance Characteristics
Performance Curves
Quality Control & Manufacturing
  • Premium Lead material used for superior performance.
  • In-house production from lead ingot to finished battery ensures consistency.
  • Strict 8-step full inspection during production.
  • 7-day standing period before packaging for stability.
Frequently Asked Questions
Q1: What is the lifespan of the 4V3.5AH VRLA battery?

A: It is designed for up to 5 years in float service or over 260 cycles at 100% discharge.

Q2: Is the battery maintenance-free?

A: Yes, it is a Valve Regulated Lead Acid (VRLA) battery, which is leak-proof and maintenance-free.

Q3: How should I store the battery?

A: It can be stored for more than 6 months at 25ºC. We recommend recharging before use if stored for long periods.

Q4: What is the self-discharge rate?

A: The self-discharge ratio is less than 3% per month at 25ºC.

Q5: Can I request fire-resistant casing?

A: Yes, flammability resistance of UL94-V0 material is available upon request.

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