Multi Function Floor Sweeper Battery 24V 200AH Low Self - Discharge
- 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)
- high energy density
- low self-discharge( <3% per month,<15% per year)
- easily replace lead acid battery
1. General Information
This specification defines the performance of rechargeable LiFePO4
battery pack describes the type, performance, technical
characteristics, warning and caution of the battery pack.
2. Specification
| NO. | Items | Characteristics | Testing Methods | | 1 | Nominal Voltage | 24V | Follow | | 2 | Nominal Capacity | 200Ah | Follow | | 3 | Minimum Capacity | 180Ah | Follow | | 4 | Battery internal Impedance | Internal Impedance≤20mΩ, | Internal Impedance Testing Machine(1kHz ) | | 5 | Shipment Voltage | 24～28V | Multi-meter | | 6 | Dimension | Length | 480*381*301mm | Vernier caliper | | Width | | Height | | gross weight | Approx: 29kg | 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 | 200A | Multi-meter | | 10 | Allowed maximum continuous discharge current | 200A | Multi-meter | | 11 | Allowed maximum reverse charge voltage | NO Allowed | / | | 12 | Allowed maximum charge voltage | 29.2±0.1V | Multi-meter | | 13 | Discharge cut-off voltage | 16±0.1V | Multi-meter |
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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
Product advantage
a. Life 2000 cycles, more than 85%.
b. Large overcharge tolerance and safer performance.
c. Self balance.
d. Four times higher energy density than Lead-acid battery.
e. Light weight and smaller than Lead-acid battery.
f. High temperature performance.
g. Low self discharge
3.
Battery Pack Electrical Characteristics
2.1 Testing Conditions (Unless Specially Requirements)
Temperature:20±5℃ Related Humidity: 45~75%
Atmosphere Pressure: 86~106kPa
The testing items under the Shipment Voltage
2.2 Battery Pack Electrical Characteristics
| No. | Items | Standards | Testing Methods |
| 1 | Internal Impedance | Impedance ≤20mΩ | Under 20±5℃ Environment Temperature , the Usage Frequency of Fully
Charge( 1KHz) , Use AC Internal Impedance test machine to test |
| 2 | Nominal Capacity | 200Ah | 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 | No load ability after short-circuit .comeback capability of loading
after remove the lead away, | Short the pack with the lead (<50mΩ). If remove the lead away,
connect the electronic loader with P+, P- of protection board
again, so load ability comes back. |
| 4 | Allowed Maximum continuous charge Current | 200A | charging with 200A for more than 0.5h and the added temperature of
battery pack less than 20℃. |
| 5 | Allowed Maximum continuous discharge Current | 200A | Discharging with 200A for more than 0.5h and the added temperature
of battery pack less than 20℃. |
| 6 | Over Current Protection | 500-800A | Using electron load connect with output side, discharge with 500A
for about 2sec Discharge with 800A for less than 20 millisecond, |
| 7 | the delay time of over current protection | 10.0-50.0ms | Using electron load connect with output side, discharge with more
than 800A and record the voltage wave of output side with
oscillograph . Numerating the time of voltage from wave to zero for
voltage |
| 7 | cycle life | Discharge Capacity ≥80% | Discharge it with the current of 50A to the cut-off voltage, and
store it for 15min.Charge a battery with the current of 50A, 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 20A. |
| 8 | 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 of20A to the
cut-off voltage and record charge capacity. Store the battery at
the following temperature for 2h and discharge the battery with 20A
to the cut-off voltage. |
| Discharge Current | Discharge Temperature |
| -20℃ | 0℃ | 25℃ | 55℃ |
| 0.2C | 60% | 80% | 100% | 95% |
| 9 | Charge Retention | remain capacity≥90% | At 20±5℃ completely charge and store it for 28days,and then
discharge it with 20A to the cut-off voltage. (We suggest charge
the battery every three months) |
| 10 | Over Discharge Protection furbish | Charging With20A | Charge the battery with 20A for 5min and measure the output voltage
(≥16V)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
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 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 20A with the load of 30Ω for
24h . Charging for 10sec with specified adapter , and check the
voltage(≥16.0V) |
| 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 |
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±50A |
| Protection delay time | 50~200ms |
| Over current release method | Release after 8s. |
Over & Lower Temperature | Battery over temperature | Protection @65±5℃ |
| Release @55±5℃ |
| Battery Lower temperature @charging | Protection @-5±5℃ |
| Release @5±5℃ |
Applications
· 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
- We have more than 10 years experience in exporting lithium
batteries
- 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.
- Within the warranty period, any defective products will be repaired
or replaced free of charge.
- Can design various sizes, capacity and logo customized.
- Professional after-sales service system, When the batteries or BMS
are broken during the warranty period, we provide a replacement.
Battery Pack Delivery
• By Air Door to Door Service
• By Sea Door to Door Service
• By Express: EMS, TNT, UPS, FedEx
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!
