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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: SaiRi
  • Model Number: 18650 Li-ion Battery Pack
  • Composed Type: 3S7P
  • Type: Li-Ion
  • Components: Lithium ion cells
  • Size: Customize Accepted
  • Voltage: 12V
  • Weight: 3.5kg
  • Nominal Capacity: 15Ah, 15000mAh
  • Application: Solar Energy System
  • Nominal Voltage: 12V
  • Discharge Cut-Off: 10V
  • Charge Cut-Off: 14.65v
  • Charge Curren: 4A
  • Cont. Discharge: 10A
  • Peak Discharge: 20A
  • Impedance: ≤200mΩ
  • Charge Temperature: 32°F - 113°F
  • Life Cycle: 2000-5000

Packaging & Delivery

Packaging Details Standard packages , or following client's request.
Wholesale 18650 12v 15Ah Li-ion Battery Pack for Energy Storage
Delivery Time Shipped in 5 days after payment


Wholesale 18650 12v 15Ah Li-ion Battery Pack for Energy Storage



Product Description



TypeLi-ion battery pack for energe storage
Nominal voltage:12V
Typical capacity15Ah
Internal Impedance(1kHz AC)<200mΩ
Max Charge voltage14.6±0.05V
Discharger cut-off voltage10±0.05V
Max charge current10A
Max continuous discharge current15A   
Max pulse discharge current25A (2 s)
Charging temperature0°C~45°C
Discharging temperature-20°C~60°C
Storage temperature-20°C~45°C
About 2000 cycles to 80% with 100% DOD under 20 °C~25°C
Size(L*W*H)8.07x2.95x2.95 inches
Application:Electric Tool Application,
Emergency equipment:light,fire and burglar alarms,etc.




Length - 8.07 Inches
Width - 2.95 Inches
Height - 2.95 Inches
Weight - 4.40 Lbs



1. 10X longer life compared to SLA batteries
2. 60% more energy
3. Up to 70% weight savings
4. Zero maintenance
5. Faster charging times
6. Built in safety protection included
7. 100% usable capacity
8. Easy installation
9. Extended warranty

1. Over-Charging
2. Over-Discharging
3. Short Circuit
4. Penetration
5. Thermal Shock
6. No Fires
7. No Explosions




Open the battery switch to the "ON" at the red light on the charger indicates when charging starts (if battery is full charge, the power green light will remain unchanged); charging time is generally more than 8 hours; until the plug's red light becomes green,  the battery is fully charged








·Electric Tools


·Electric Toys And Models


·Portable Power Resources


·Field Medical Treatment


·Prospecting Equipment


·Lineless Lawn Mowers


·Vacuum Cleaners  


·Portable Word Processors


·Computer Terminals And Calculators  


·Portable TVs


·Tape Recorders




·Public Power Systems  


·Private Solar Systems


·Wind Power


·Lawn Lights


·Street Lamps   


·Traffic Lights


·Railway Signal Lamps And Signal Communication Stations






1) Super longevity .Its cycle can reach as long as 2000 times which is 7-8 times of SLA . 

2) No pollution .Our battery is absolutely green product, while LiCoO2 and SLA cause serious pollution to the environment .

3) High security .Our battery is 100% safe lithium battery in the world .It will never catch fire under worst condition 

4) Can discharge with high drain . 

5) Can stand deep discharge till 100% DOD. Even the voltage goes down to nearly 0 volt shortly, it can still remain to normal voltage


6) Stand very high temperature .Even suitable to use in 70centigrade . It is the battery which can stand the highest temperature among all other rechargeable battery .It also can stand -20 centi degree cold temperature


7)Maintenance free , half year use( charge and discharge)  battery by one time that is ok, .Has a shelf life of 30 years.


8) Good performance, light weight


9) Economic power, If you consider about the every cycle life, LiFePO4 battery is even cheaper than LA battery. And for LA battery you have to consider about the maintaining fare and disposal fare as well.


10) Customize battery




please trun on the switch when charge for this item. And if you want to measure the voltage, suggest using pointer multimeter.Because digital measure table easily jump table. If the item is not 10.8 - 12.6V, pls trun on the switch again.


Packaging & Shipping



1 x 12V 15000mah Li - ion Battery
1 x EU Plug Charger (Also come with an adapter according to your country~)










Our Services


 Exclusive and unique solution can be provided to our clients by our experienced and  professional engineers and researchers

  1. Solve the problems be prompt if anything wrong with our products' quality
  2. Service Purpose: 
    To help customers ultimately realize the value-added of product.
  3. Service View: 
    We cherish every opportunity to serve our customers, which will be the step to achieve success.
  4. Service Starting Point:
    To think over and analyze problems from customers’ position.
  5. Service Attitude:
    Positively analyze and handle problems, and propose constructive solutions. Improve our own ability conteniously and keep our promises to satisfy customer

Company Information


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