36V 80AH Household Battery Pack

Floor Scrubber Battery / Sweeper Battery 36V80AH Nano LiFePO4 battery, Lithium Iron Phosphate

 

• long life & deep cycle( over 2000cycles @ 100%DOD)
• with built-in PCM/BMS protection
• super quick charge/discharge performance
• safe pressure valve design ( no explosion, no fire)
• low self-discharge( <3% per month,<15% per year)

 

1. General Information

This specification  Describes the type and size, performance, technical characteristics, warning and caution of the rechargeable cell. If the user needs to support the parallel use, please charge the battery packs until output voltage difference is less than 0.2V.The non-professionals forbid performing this operation. It is strictly prohibited any series between the battery packs. If user needs to support the series use, please contact us and acquisition serial using pack.

 

2.

Specification

Battery Pack Basic Features NO. Items Characteristics Testing Methods 1 Nominal Voltage 38.4V Follow GB/T18287-2013> 2 Nominal Capacity 80Ah Follow 3 Minimum Capacity 76Ah Follow 4 Battery internal Impedance Internal Impedance≤40mR Internal Impedance Testing Machine(1kHz ) 5 Shipment Voltage 38.4～40.8V Multi-meter 6 Dimension Length 503(±2)*240(±2)*222(±2)mm Vernier caliper Width Height gross weight Approx. 31kg electronic scale 7 Working Temperature Charge 0~45℃,45~85%RH Temperature & Humidity Instruments Discharge -20~55℃,45~85%RH 8 Storage Temperature & Humidity Range Short: above one month -20~+55℃,45~85%RH Temperature & Humidity Instruments Medium: above three months 0~+45℃,45~85%RH Long:above one year +5~+30℃,45~85%RH 9 Allowed maximum continuous charge current 40A Multi-meter 10 Allowed maximum continuous discharge current 80A 300A for 8S 11 Allowed maximum reverse charge voltage NO Allowed / 12 Allowed maximum charge voltage 43.8±0.2V Multi-meter 13 Discharge cut-off voltage 27.6~32V Multi-meter

 

Customize Any of The Following Battery Packs as Required
Can be customized according to the requirements of 3.7V, 7.4V, 11.1V, 14.8V, 18.5V, 22.2V, 25.9V, 36V, 48V, 60V, 72V
 

 

BMS specification of  200Ah lithium battery 24 volts rechargeable​:
Cell overcharge detection voltage: 3.90V±50mV
Cell overcharge recovery voltage: 3.80V±100mV
Cell over-discharge recovery voltage: 2.30V±100mV
Rated operational charge current: 200 A
Over current detection: 100±30A
BMS impedance: ≤20mΩ

 

 

12V 50Ah advantage

 

1. Cycle life: More than 2000 cycle times

2. Very safe: It have the best safety and steady performance,no fire ,no exploding under the condition of over-charge.

3. Light weight and smaller dimension: The dimension compares with other battery.about 1/2-2/3 weight of lead acid

4. Great capacity and more powerful,rechargeable battery: We can install many single cells in series and in parallet and it can fully discharge

5. No memory effect: It can be recharged anytime,no reduction of the capacity

3.

Battery Pack Electrical Characteristics

3.1 Testing Conditions (Unless Specially Requirements)

Temperature:20±5℃ Related Humidity: 45~75%

Atmosphere Pressure: 86~106kPa

The testing items under the Shipment Voltage(38.4～40.8V)

3.2 Battery Pack Electrical Characteristics

No.	Items	Standards	Testing Methods
1	Internal Impedance	Impedance ≤40mR	Under 20±5℃ Environment Temperature , the Usage Frequency of Fully Charge( 1KHz) , Use AC Internal Impedance test machine to test
2	Nominal Capacity	80Ah	Rest for 0.5~1 hour after fully charge, Using electrical loader to connect with the battery output port, and discharge with constant current 0.2C till it can’t discharge. Do the cycle three times, if there is one time that the discharge time is equal or more than 285minute , you can stop.
3	Short circuit protection	/	Short circuit prohibited
4	Allowed Maximum continuous charge Current	40A	charging with this current for more than 0.5h and the added temperature of battery pack less than 20℃.
5	Allowed Maximum continuous discharge Current	80A	Discharging with this current for more than 0.5h and the added temperature of battery pack less than 20℃.
6	Over Current Protection	300~400A	Using electron load connect with output side, discharge with 300A for about 2sec Discharge with 400A for less than 200 millisecond,

7	the delay time of over current protection	50~200ms	Using electron load connect with output side, discharge with more than 400A and record the voltage wave of output side with oscillograph . Numerating the time of voltage from wave to zero for voltage
8	cycle life	Discharge Capacity ≥80%	Discharge it with the current of 0.2C to the cut-off voltage, and store it for 15min.Charge a battery with the current of 0.2C, then keep the voltage and current constant and continue to charge it until completed . After storing the battery for 15min. The test is to be conducted as per the above cycles. The cycle should be 1000 times. At the 1001 times discharge capacity should not be less than ≥80% with 0.2C.
9	Discharge Temperature Characteristics	The ratio between discharge capacity and charge capacity should be not less than the following value	At 20±5℃ discharge the battery with the current of 0.2C to the cut-off voltage and record charge capacity. Store the battery at the following temperature for 2h and discharge the battery with 0.2C to the cut-off voltage.
		Discharge Current	Discharge Temperature
			-20℃	0℃	25℃	55℃
		0.2C	60%	80%	100%	95%
10	Charge Retention	remain capacity≥90%	At 20±5℃ completely charge and store it for 28days,and then discharge it with 0.2C to the cut-off voltage. (We suggest charge the battery to 38.4~40.8V every three months)
11	Over Discharge Protection furbish	Charging With 0.2C	Charge the battery with 0.2C for 5min and measure the output voltage (≥27.6V)of the battery pack. The battery should have load .

 

Safety Test

No fire, no explosion

Charing to 3.7v and do nail penetration test, there is no fire, no explosion, no any other obvious changes.

 

Nail Penetration Test and Overcharge Test

After testing, no fire and no explosion, that is definitely approved than our lithium batteries deserve you.

 

BATTERY PACK SAFETY TEST

.1 Testing condition (Unless Special Requirements)

Temperature:20±5℃ Relative Humidity: 45~75%

Atmosphere Pressure: 86~106kPa

All testing under full capacity

2 Battery Pack Safety Test

No.	Items	Standards	Testing Methods
1	Short-Circuit	The battery should be no remarkable breakage, distortion. And charge normally.	Use a resistor with less than 0.05Ω to make the battery short circuit for 1 hour. The appearance and characteristics are normal.
2	Over Discharge Protection Test	The battery should be no remarkable breakage, distortion. Appearance and charge are normal.	Discharge the battery at the rate of 0.2C with the load of 30Ω for 24h . Charging for 10sec with specified adapter , and check the voltage(≥27.6V)
3	Impact Test	The battery should be no explosion or catch fire	Place a full charged battery on a flat and put a stainless steel stick (Diamond 7.9mm) in the middle of the battery upright . Beat the steel stick with 9.1Kg

Battery Pack Reliability Test

4.1 Testing condition (Unless Special Requirements)

Temperature:20±5℃ Relative Humidity: 45~75%

Atmosphere Pressure: 86~106kPa

All testing under full capacity

4.2 Reliability Test

No.	Items	Standards	Testing Methods
1	Vibration Testing	The appearance of battery should not leakage, break or explosion	Fix a charged battery on a vibrating table, vibrate it for 90 minutes in three mutually perpendicular directions at the 0.8mm resonance. The frequency is to be varied at the rate of 1hz/min between 10 and 55 hertz.
2	High Temperature Discharge Testing	The battery should be no remarkable breakage, distortion. Discharge time should not less than 255mins	Place a full charged battery under the environments of 55℃ for 2 hours. Discharge it at the current of 0.2C to the cut-off voltage. Then keep it at 20℃±5℃ for 2 hours.
3	Low Temperature Discharge Testing	The battery should be no remarkable breakage, distortion. Discharge time should not less than 180 minute	Place a full charged battery under the environments of -20℃ for 15-24 hours. Discharge it at the current of 0.2C to the cut-off voltage. Then keep it at 20℃±5℃ for 2 hours.
4	Constant Humidity & Temperature Testing	The battery should be no remarkable breakage, distortion. Discharge time should not less than180mins	Place a full charged battery under the environments of 40℃ and 90% - 95%RH for 48 hours. And keep it in the room temperature for 2 hours. Then discharge it at the current of 0.2C to the cut-off voltage.
5	High & Low Temperature Storage	The battery should be no remarkable breakage, distortion. And charge/discharge normally	Place a full charged battery in a oven with 55±2℃ for2 hours, then keep it under 20±5℃ for 4hrs, then place it in a oven with -20±2℃ for 2 hours, then keep for 4 hours under 20±5℃, cycle as high temperature-normal temperature-low temperature-normal temperature-high temperature for 10 times

4.

Circuit Protection

 

The batteries are supplied with a LiFePO4 Battery Management System (BMS)that can monitor and optimized each single prismatic cell during charge & discharge, to protect the battery pack overcharge, over discharge, short circuit. Overall, the BMS helps to ensure safe and accurate running.

 

Test item	Content	Criterion
Over charge	Over-charge protection for each cell	3.90±0.03V
	Over-charge release for each cell	3.60±0.05V
	Over-charge release method	Under the release voltage
Over discharge	Over-discharge protection for each cell	2.30±0.05V
	Over-discharge release for each cell	2.80±0.05V
	Over-discharge release method	Above the release value
Over current	Discharge over current protection	400±100A
	Protection delay time	50~200ms
	Over current release method	Release after cutoff the load.
Battery temperature	Battery Over temperature	Protection @65±5℃, Release @55±5℃
	Charge lower temperature	Protection @-10±5℃, Release @0±5℃

 

 

Application:

· Energy Storage Systems (ESS)

· Hybrid Grid back-up

· Remote area power systems

· Communications systems

· Electric vehicles

· Marine environments

· Military & Aviation

· Industrial Machinery

· Uninterruptible Power Supplies

· CCTV & Data Transfer

 

 

 

 

 

Warranty

• We offer 3 years warranty for battery packs in low discharge rate (below 1C) applications,
• We offer 2 years warranty for battery packs in high discharge rate (1~3C) applications.
• For charger / BMS, here are one year warranty.

 

Store

◆For long time storage ,the battery should be charged to Approx 60% SOC ,its corresponding voltage should be 1.05times of nominal voltage(24V,36V,60Vor72V),usually it's voltage in shipment .The battery should be kept in storage in dry and ventilated place.

◆ The battery pack and charger should be stored in clean, dry and ventilated place, avoid contacting with corrosive materials and be away from fire and heat.

 

Quality Control

We do below test before delivering

 

Capacity test, High current discharge test,Low temperature test, Short circuit test, Over charging test,

Over discharging test, Cycle performance test, Crush test, Impact test, Vibration test, High temperature test

 

Our Services

 

1. Special packaging design--We can provide packaging design services according to customers' guidance and experience, including Print the design of inner box and carton. no need to worry about design because we have professional designers working in our factory.
2. Within the warranty period, any defective products will be repaired or replaced free of charge.
3. Can design various sizes, capacity and logo customized.
4. Professional after-sales service system, When the batteries or BMS are broken during the warranty period, we provide a replacement.

 

FAQ

 

1. What's your advantage?

Small order is acceptable, zero risk, quality assurance.

 

2. Can you accept OEM and ODM services?
Yes, just tell me your requirements and we will provide you with the best solution.

 

3. What are your payment channels?
TT, L/C, West Union etc.

 

4. What service do you provide?
All our batteries have passed the safe test and performance test before shipment.
Support printing your logo on the battery.
Small order is acceptable.

 

5. Is your lithium battery reliable?
Yes. Overcharged, over-discharged, nail penetration test, all protected by our battery.

 

6. Can I get a lower price if I order large quantities?

Yes, very competitive prices with more quantity.

 

7. How you shipping the goods and how long it will take?
Normally FEDEX, DHL,UPS etc, around 4-7 days.

 

 

8. Can I just try samples for the first order?

Yes, 1 pcs sample and small trial order are acceptable.

 

 

 

24 hours customer service, waiting for your inquiry!