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12V 40ah Lead Acid Rechargeable VRLA Battery for Electric Bike

Basic Info
  • Model NO.: 12v40ah

  • Usage: Car, Bus, UPS, Electric Power, Lighting, Electric Bicycle, Boat

  • Discharge Rate: Low Discharge Rate

  • Electrolyte: Acid

  • Rechargeable: Chargeable

  • Sealed Type: Sealed

  • Dimensions: 220*91*173mm

  • Warranty: 13months

  • Package: 4PCS/CTN

  • Origin: Rizhao, Shandong

  • Type: Lead-Acid Batteries

  • Nominal Voltage: 12V

  • Shape: Square Battery

  • Installation: Packaged

  • Maintenance Free: Yes

  • Rated Capacity: 40ah

  • Weight: 10kgs

  • Trademark: Cane or OEM

  • Specification: CE ISO

  • HS Code: 8507200000

Product Description
12V 40AH lead acid rechargeable VRLA battery for electric bike

Please be noted that the latest prices subject to our quotation, if you have any questions, feel free to contact us: 

We can do OEM with your own brand!

Ms. Max Lin
Cel.: +86 185 6101 9895
 S.K.Y.P.E.: kysolarbattery

Keyword: vrla battery
Model No.12v 40ah
Nominal Voltage12V
Rated Capacity ( 25ºC /77F)40AH
Weight Approx(kgs)10
Internal Resistance11mΩ
Max.Discharge Current90A
Max.Charge Current 20A
Self-Discharge 25&#186;C  per day<0.1%
Cycle Charge Voltage(V)14.8
Float Voltage(V)13.8
Operating Temperature (charge/discharge/storage)-25&#186;C ~-45&#186;C
Battery Construction 
Positive PlateLead Dioxide
Negative PlateLead
Safety ValveSI-Rubber
ElectrolyteNano SiO2+H2SO4

4pcs/catoon or custom. 

Typical Applications:

1.Electric bike battery, UPS
2.Buses and golf cart;
3. Mine vehicle and other vehicles.
4. Solar systems;
5. Wind energy systems etc.

Cane Battery Advantages:
Kangyang has multiple design patents
1. Sufficient capacity, high special energy, reach 35-38WH/KG;

2. High Temperature Resistant;

3. Greater vibration resistance;

4. High quality alloy grids and pure electrolyte are adopted and the self discharging and water loss are low.

5.Under normal usage at 25 &#186;C,charge-discharge circle can reach more than 360 times, even more than 650 times if maintain according to stipulation;

6.Kangyang's unique designed safety valve adds security and reliability;

7.Fully sealed leak-proof design makes kangyang batteries can be used in any direction except upside-down;

8.Special design cover makes it easy to maintain the batteries, also can prolong 20% to 100% of the service life;

9. Eco-friendly material.

10. Maintenance free As it is valve-regulated sealed. Absorbent Glass Mat (AGM) technology ensures efficient gas recombination up to 99% and freedom from electrolyte maintenance. During the expected service life of batteries, no need to check the specific gravity of the electrolyte or add water.It is leak proof and refilling is no needed. 
11. Longer service life design:utilized thick and massive calcium grate ensure that SLA battery has a longer service life;Nano gel electrolyte eliminate the acid stratification and prolong cycle life.
12. Advanced Discharging Ability :With smooth discharging voltage and mild discharging platform;Tight assembly technology and the internal resistance is low ensures an excellent high-rate discharge performance.
13. High resistance to overdischarge& overcharge : In temperature of 25 degrees Celsius, the fully charged battery discharges with fixed resistance which is equivalent to the one required by 1 CA discharge of the battery for three weeks, and it can restore capacity over 75%;The fully charged battery is proved to maintian normal open circuit voltage and be without leakage or batteries swelling or cracking after chargeing at 0.1 CA for 48 hours, and the capacity maintian over 95%.
14. High impact-proof performance: The fully charged battery is proved to maintian normal open circuit voltage and be without leakage or batteries swelling or cracking after droping three times from 20cm height naturally to a 1 cm-thick hardwood board.
15. High resistance to high current: The fully charged battery is proved to be without conductive part melted or any appearance deformation after discharging at 2 CA for 5 minutes or 10 CA for 5 seconds.
16. High shock-proof performance: The fully charged and completely fixed battery, with 4mm amplitude and 16.7HZ frequency do have a normal open circuit voltage without leakage,no batteries swelling or cracking problem after one-hour vibration.
17.Sealed Construction and easy to ship:The unique sealed construction and sealing technique guarantee ensures that no electrolyte leakage can occur from the terminals or case of the batteries.
18. Excellent safety performance: No electrolyte leakage,no battery swelling and  no cracking under normal use.

Q1: What's your payment terms?
A1:We accepted almost all payment terms,like T/T,L/C,DA,DP,Western Union,MoneyGram

Q2: OEM Service
A2: We can print your LOGO on Battery case , If your quantities reached 100PCS , We also can printing your LOGO on Battery carton.
Q3: Warranty process.
A3:  We provide 1 ~ 8 years different warranty.
Q4:How long is your delivery time?
A4:Normally,the whole production cycle need 15 days from material to finished products,but we can send goods within 7 days,because we have lead plate in stock.
Q5: Why our price competitive ?
A5: Because the lead plate , battery case etc , all the battery accessories all from our produce. 

Our electric bike batteries range:
Model No.12v 14ah 12v 22ah12v 40ah12v 50ah12v 60ah12v 65ah
Nominal Voltage12V12V12V12V12V12V
Rated Capacity ( 25&#186;C /77F)14AH22AH40AH50AH60AH65AH
Weight Approx(kgs)4.571011.813.515
Internal Resistance11m&#937;11m&#937;11m&#937;11m&#937;11m&#937;11m&#937;
Max.Discharge Current90A90A90A90A90A90A
Max.Charge Current 6A10A20A20A20A20A
Self-Discharge 25&#186;C  per day<0.1%<0.1%<0.1%<0.1%<0.1%<0.1%
Cycle Charge Voltage(V)14.814.814.814.814.814.8
Float Voltage(V)13.813.813.813.813.813.8
Operating Temperature
-25&#186;C ~-45&#186;C-25&#186;C ~-45&#186;C-25&#186;C ~-45&#186;C-25&#186;C ~-45&#186;C-25&#186;C ~-45&#186;C-25&#186;C ~-45&#186;C

About Us 

Established in 2002, Shenzhen dingkangda technology Co., Ltd  is specialized in R&D and manufacturing of high performance battery, battery charger and controller for electric vehicles and solar panels. We are located in Wulian country, Rizhao city, Shandong province with convenient transportation. 

The company has passed ISO9001:2000, ISO14001:2004 and GB/T28001-2001, and won the honor title of Shandong Famous Trademark, The State High-tech Enterprises, China 's Well-known Trademark and Shandong most Responsible Enterprise for Environment.

Covering an area of about 333500 square meters, with more than 1500 employees as well as high level technology and advanced array of fabricating machineries, our annual production capacity of electric vehicle batteries and plates are more than 20 million sets. 

Kangyang is one of China's largest and earliest manufacturers in electric vehicle battery industry, known as the "Father of Chinese nano battery". 

We are constantly striving to improve our business, from the products to marketing and service. Our goal is to provide reliable products and solutions that satisfy our clients. We are committed to establish close relationships with our clients to assist them in the long term.

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