Dear valued customer,
We are an manufaturer specialized in Lifepo4 & Ncm lithium battery used for EV,E-Bike,Golf Car,Mail Truck,UPS and solar energy storage.
Customization is available.
Lithium polymer battery modules in parallel or in series, can be used in electric vehicle,
E-bike, UPS, energy storage system, telecommunication base station, E-scooter, E-tools,
unmanned airplane, golf cart, fork lift, cleaning car , electric wheelchair, etc.
1. Battery Parameter
We have battery packs from 12v to 400v with 12ah to 200ah, here taking 72v 40ah as an example.
Pictures of 72V 40Ah lithium polymer battery pack
Product specification:
| ES-12VA | ES-12VB | ES-12VC | |
| Battery type | 12V 41AH(453WH) | 12V 31AH(345WH) | 12V26AH(288WH) |
| Output power | Rated 500W max 1000W | ||
| Input voltage | AC: AC 110V~220V 50/60Hz, solar energy and wind energy DC 18-36V input, vehicle borne 12V transmission, no controller. | ||
| Output voltage | 220V 50Hz / 110V 60Hz | ||
| DC output | 4*12V/4A 4*USB5V/2A | ||
| LED light | 1W, max 3W | ||
| Solar charging | 18V 100W | ||
| Car charging | 12V output, do not use 24V | ||
| Output waveform | Pure sine wave | ||
| Blackout reaction time | Less than 5 milliseconds | ||
| Overload | After overloading, disconnected everything and switch, then restart | ||
| Short circuit | After the short circuit, disconnected everything and switch, then restart | ||
| Lifespan | >500 cycles | ||
| Weight | Net weight 3.0kg, after packing 3.5kg | ||
| PS: Battery design with car start function is also available if necessary | |||
2. Main Features of Our EV Battery Cells
1. High energy density
| lifepo4 battery cell | LiNiCoMn battery cell (ab.NCM battery) | |
| weight energy density | 150wh/kg | 200wh/kg |
| volume energy density | 280wh/L | 334wh/L |
2. Low internal resistance
Methods of reducing the internal resistance:
**Using carbon coated aluminum foil
**Multiple electrode tab design
**Increasing the width of electrode tab
**Coating PVDF on battery separator
**Pore-creating artificially
3.Long lifespan
Usable for more than 2,000 charge-discharge cycles
> 4 times than lead acid battery
> 2 times than li ion battery
4.Excellent performance in high and low temprature
Usable in extremely cold and hot environments (-20 to 60 ºC)
CTS cell's performance and Application
Safety Performance
Item | Test name | Result |
1 | Over charge | No fire,no explosion |
2 | Over discharge | No fire,no explosion |
3 | Short Circuit | No fire,no explosion |
4 | Drop | No fire,no explosion,no leakage |
5 | Hot oven | No fire,no explosion |
6 | Crush | No fire,no explosion |
7 | Needle puncture | No fire,no explosion |
Battery quality control for after-sale
All of CTS battery cells in a pack are with very high consistency.In a pack, each cell has its ownsole electronic code(ID number) for quality control after-sale. Assume one cell in a pack is damaged in any reason after several years later, we could provide a exactly same cell to the client to replace this damaged one(same voltage, capacity, impedance,etc.), in order to make sure all of the cells in this pack with very high consistency. CTS has a strong system working for this.
Battery assembly process
Each battery module in parallel is fixed with steel parts,then put them together by pull rob.After this,there are covers to protect battery with case and BMS.
About CTS
Do the batteries have a warranty?
§ Yes, currently 3 years; extended warranties are also available.
How long do the batteries last?
§ 10 years / 200,000 KM (124,275 miles) [calculated based on 100km battery pack]
§ 2000 charges & discharges at 100%.
§ This means approximately 10 years of normal use 200,000 KM. (124,275 miles)
§ Normal use is defined as 20,000km/year. (12,500 miles/year)
Do you use Lead Acid Batteries?
NO WE DO NOT! Our reasons:
§ Lead Acid Batteries do not allow as many charge & discharge cycles as advanced lithium batteries
§ Lead Acid batteries degrade after 300 charge cycles in an electric car until they expire, approximately 1.5 -2 years of driving
§ Not cost effective to change your battery pack every two years
§ Lead Acid is HEAVY, and reduces your range, doesn't supply continuous power
Customer Feedback
We are happy with your battery quality. I've also been very happy with your good support,
let's continue discussions and work on more,tks.----Michael (from Berlin,Germany)
I wanted to thank you for your help. The battery pack tested at over 100AH with over 5400Watt hours! It ran two home refrigerators (one is in my hot garage with no A/C) and my 65" TV for about 20 hours! --- Tom (From L.A USA)
I am thrilled to have a superior pack from your company! --- David (From Melbourne Australia)
Order information
Sample is avaliable and welcome.
Trade term: FOB Shenzhen or Guangzhou; EXW, CIF,DDU and DDP are available.
Delivery time: 7 working days for sample order, 15- 25 working days for mass order.