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Polymer Li-Ion Cell: 3.7V 530mAh (1.96Wh, 503035-2C) - UN38.3 Passed

Your Price: $5.95
In Stock

Product ID # 404
Part Number:

Lead Time: 5 Business Day

Quantity Discounts

5 to 20$5.77
21 to 50$5.65
51 to 100$5.53
101 or more$5.35


Battery cell Polymer Li-Ion (503035-2C) cell
Voltage Nominal: 3.7V
Charge Cut-off: 4.2V±0.10V  -- CC/CV charge
Discharge Cut-off: 2.8V 
Capacity Nominal: 530mAh
Minimum: 520mAh
25°C, 0.2C discharge
Charge Current Standard: 104mA / 0.2C
Maximum: 520mA / 1.0C
0 to 45°C
Discharge Current Standard: 104mA / 0.2C
Maximum: 1040mA / 2C
0.2C: -20 to 60°C
2C:     0 to 45°C
Impedance ≤90mΩ 25°C, AC 1KHz after 50% charge
Dimension(LxWxH) with
tolerance ±1 mm
35mm x 30.5mm x 5.0mm  
Weight 0.35 Oz (10 grams)  
Storage Temperature ≤1 month: -20 to 45°C;
≤6 moths: 0 to 30°C ;
≤ 12 months: 20±5°C;
Best 20±5°C for long time
Suggestions on designing
Lithium battery packs
What to consider when designing Lithium Batteries

Please download the Specification here 


  • Li-Ion Batteries may explode if charged or discharged improperly.
  • The end user must have the technical knowledge of Lithium batteries before making battery packs.
  • Must use a protection IC (PCB) to prevent the battery from over charged and over discharged.
  • Batteryspace.com is NOT liable for any misuse due to any other brand of PCB applie. 
  • Please read more safety warning about Li-ion battery
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

Related Products

  • Please choose our smart Li-Ion battery charger to recharge this battery.
  • If you DIY by yourself, you MUST install our PCB or your own PCB with the following feature:
    • 4.2V/cell over-charge protection
    • 2.5V/cell over-discharge protection
    • Max current over-drain protection
    • Short circuit protection. 
  • Fire Retardant Bag: 300mmx230mm -- Reduce the chance of damage if caught fire

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Product Reviews

(1 Rating, 1 Review) Average Rating:
happy with products
Leslie Barto (Bucyrus, OH ) 9/6/2013 11:50 AM
nice and easy to find what ever u need when it comes to rc battery ! really like this store . keep it up people !!
What to consider when designing Lithium Batteries?
Bluetooth Technology for Lithium-ion/LiFePO4 Batteries
UN 38.3 Safety Test

We own a national standard UN38.3 testing lab. We can provide UN38.3 test service to our customer.

If you want to set up your own lab, we also provide UN38.3 & IEC62133 equipments and onsite training. Email us for the quote and lead time.
Lithium Battery Shipping Regulation
Recommendations on How to get ≤30% Rated Capacity for Shipping
Thermal Abuse Test for IEC62133
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