Lightweight Lithium ion Rechargeable Marine Battery 12V 250AH 2
years Warranty
This specification defines the performance of rechargeable LiFePO4
battery pack describes the type, performance, technical
characteristics, warning and caution of the battery pack.
SPECIFICATION
Specification | NO | Items | Description | | Normal Specification | | 1 | Nominal Voltage | 12.8V | | 2 | Normal Capacity | 250Ah | | 3 | Internal Resistance | ≤20mΩ | | 4 | Series-Parallel application | up to 4 series-connected applications | | 5 | Communication function | / | | Standard Charge | | 6 | Charge operation temperature range | 0~45℃ | | 7 | Normal charge voltage | 14.6±0.1V | | 8 | Recommended float charge voltage(for Standby use) | 13.8±0.1V | | 9 | Allowed MAX constant charge current | 80A@Battery initial Temp 25±5℃ | | 10 | Recommended charge current | ≤80A | | Standard Discharge | | 11 | Discharge operation temperature range | -20~60℃ | | 12 | Output Voltage Range | 8.0~14.6V | | 13 | Allowed MAX constant discharge current | 80A @Battery initial Temp 25±5℃ | | 14 | Discharge peak current | 100A/30min,350A/3s | | 15 | Discharge end voltage | 8.0V |
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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
Test Conditions
Electrical Characteristics & Test Condition
Testing Conditions: Ambient Temperature: 25±5℃; Huminity:45%~75%.
| NO | Items | Criterion | Condition |
| 1 | Min Capacity | ≥250Ah | Rest for 1 hour after fully charged, then discharge with 0.33C
current until the battery reaches the cutoff voltage. you can stop
and define the Discharging current*time value (Ah) as battery
capacity. |
| 2 |
Cycle life (DOD%100) | ≥2000cycle | Charge / CC(0.33C)/CV(14.6V);
End current : 0.05C;
Rest time : 1h;
Discharge / CC(0.5C);
End voltage : 8.0V;
Repeat above process until discharge capacity is no more than 80%
of normal value. Accumulated times is defined as cycle life. |
| 3 |
Discharge Temperature
Characteristics | -20℃ | ≥70% | At 25±5℃ discharge the battery with the current of 0.33C to the
cut-off voltage. Store the battery at various temperatures for 2h
and discharge the battery with 0.33C to the cut-off voltage. Record
the ratio between discharging & charging capacity. |
| 0℃ | ≥80% |
| 25℃ | 100% |
| 55℃ | ≥95% |
| 4 | Charge Retention ability | remain capacity≥90% | Charge the battery to full capacity and store it for 28days, and
then discharge it with 0.33C to the cut-off voltage. |
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 | 3.80±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 | 2.00±0.05V |
| Over-discharge release for each cell | 2.30±0.05V |
| Over-discharge release method | Charging |
| Over current | Discharge over current protection | 350~550A |
| Protection delay time | 10~40ms |
| Over current release method | Release after cutoff the load. |
Over
Temperature | Battery over temperature | Protection @65±5℃ |
| Release @50±5℃ |
Over
Temperature | Battery lower temperature | Protection @100±5℃ |
| Release @70±15℃ |
Features:
The battery uses imported original big brand ion batteries, with a
small internal resistance, big capacity, cycle times and more, no
memory effect, etc; internal circuit for multiple protection
design, can prevent over charge, over discharge, over current;
production process quality inspection and monitoring the use of
computers to ensure superior battery performance.
Applications
· Energy Storage Systems (ESS)
· Remote area power systems
· Communications systems
· Electric vehicles
· Marine environments
· Military & Aviation
· Industrial Machinery
· Uninterruptible Power Supplies
· CCTV & Data Transfer
How to choose a suitable battery pack?
- battery voltage is the same with the original.
- battery size same with the original. Or similar/smaller.
- battery plugs same with the original (check the plug diagram)
Match the above three conditions, in general, this battery can be
used.
The larger of MAH, the longer use time. Different voltage, battery
size, shape, can be same voltage, because the battery combination
of different ways, the shape is not the same. You can leave a
message about your old battery, please pay attention!!!
Product advantage
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)
· high consistency
· easily replace lead acid battery
Quality Control
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
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
The battery need to be charged every 6 months if out of use; No
fall down, no pile up over 6 layers, and keep face up.
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. How you shipping the goods and how long it will take?
Normally FEDEX, DHL,UPS etc, around 4-7 days.
7. 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!
