New 100% Original 2.4V 4Oah LTO Battery For Energy Storage Car Start
New 100% Original 2.4V 4Oah LTO Battery For Energy Storage Car Start
| Item | Parameters | Remark |
| Rated Capacity | 40ah | |
| Nominal Voltage | 2.4V | |
| Internal Impedance | ≤0.5mΩ | Internal resistance measured at AC 1kHz after 50% charged. |
| Standard Charge Cut-off Voltage | 2.8V | |
| Standard Discharge Cut-off Voltage | 1.5V | |
| Maximum Continuous Charge Current | 4C(160A) | 25℃±5℃ |
| Maximum Continuous Disharge Current | 8C(320A) | 25℃±5℃ |
| Maximum Pulse Charge/Discharge Current(10s) | 20C(800A)10 sec | |
| Dimension | Diameter: 60.0±1.0mm Height: 165.0±1.0mm | The detailed dimension can be found in "11.Scheme of the cell structure" of this specification. |
| Weight | 1050.0±10g |
Reasons why car audio batteries require high current
1.Music is not a constant signal, it is full of instantaneous explosive power, such as the tapping of bass drums, explosions, and so on. These moments require audio amplifiers to provide enormous power (current) in a very short amount of time to drive speakers and reproduce impactful sound.
2.High power speakers require enormous energy, and energy (power)=voltage x current. To achieve high power with a fixed voltage, it is necessary to use a large current.
The standard voltage for the electrical system is usually fixed 12V,To achieve high power, it is necessary to increase the current.
If you want the peak power of your audio system to reach 1000W
-
I = P / V = 1000W / 12V ≈ 83.3A - This means that at peak output, your audio system needs to draw over 83A of current from the battery and generator! This is only a rough estimate, and in reality, due to issues such as amplifier efficiency, the current may be higher.
3.High performance car audio systems typically use low impedance speakers, commonly 4 Ω, 2 Ω, or even lower.
Ohm's Law: I=V/R
In the case of a fixed voltage V, the smaller the resistance R, the larger the current I.
Driving a 2 Ω speaker requires twice the current as driving a 4 Ω speaker at the same voltage.
Battery cell IR
6 mins fast charging:
1,Safest Lithium chemistry with high energy density
2, Built-in automatic protection for over-charge, over discharge, over current
and over temperature
3,Efficient & long-lasting up to 20000+ cycles
4, Energy capacity hours of 40AH last 1HR
5,Internal cell balancing
6,Wide temperature range:-40℃~ 60℃
7,<3% yearly discharge storage with tripe safety protection
8,High capacity system with 40AH
Applications
- Intensive energy storage station
- Home energy storage
- Charging pile
- E-bus/E-car
- Electric tools
- Forklift
About the Transportation&Delivery
1. Shippment to USA:By sea+Express(DDP,Tax free)
ETD:5-8 days
ETA:25-35 days after sailing(This is the delivery time for most orders. Please wait patiently or contact us online)
The tracking will be updated after pick up by local express.Usually it will take around 15-25 days after sailing.
2. Shipment to EU:By railway+Express(DDP,Tax free).Except Switzerland,Romania
ETD:5-8 days
ETA:30-45 working days after shipping(This is the delivery time for most orders. Please wait patiently or contact us online)
The tracking will be updated after pick up by local express.Usually it will take around 25-40 working days after shipping.
3. We can't deliver the following address directly
Puerto Rico, Virgin Islands, Guam, Alaska Note: Hawaii does not include customs duties and requires additional freight, Please contact us online.
Portugal: Azores and Madeira
Spain:Canary Islands, hueda and melilia
Russia: Kamchatka Peninsula
Other:Some remote areas not listed,Please provide shipping address and zip code to to us to check.
About US
Changsha Deligreen Power Co.LTD,founded in 2010,is a "Green Energy Solution Service Provider".
Newest technology,new idea,heard-working and honest people.
Focus on lithium rechargeable battery,BMS,Balancer,charger and relative products.
Main application:electric bicycle,scooter,motorhome,AGV,solar/wind system,Energy storage system,truck and so on.s:
We promise"real"lithium capacity
We promise“100%“ refund for any quality problem
We promise”100%“ replacement for any shipping damage
We promise lifetime fast technical supportCustomers‘ satisfaction is our endless pursuing.
FAQ
Q: What is the life expectancy of a Lithium battery?
A: The typical estimated life of the Lithium Iron Phosphate (LiFePO4) battery is 5-15 years or 2000 to 8000 charge cycles. One charge cycle is a period of use from fully charged, to fully discharged, and fully recharged again.
Q: 1. Where can I get the price?
A: Please Click Contact Now or Request a Quote. We will offer you the best quote in 24 hours after we get
the product specifications such as voltage capacity application etc.
Q: How can you guarantee your quality?
A: Normally we will send you a sample to confirm everything first. We will make the big order exactly
the same as you request. And we offer 1 year warranty for small battery packs, 2-3 years for battery
Q: What is your term for payment?
A: We accept T/T,L/C,Paypal, Western Union,Money Gram,Ali Express,Cash,etc.
Q: What kind of certificates do you have?
A: We can provided CE,ROHS,MSD,SHIPPING CERTIFICATIONS.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.