Long-lasting over 2000cycsle 12V300AH Rechargeable Marine Battery,
Lithium Iron Phosphate
This specification defines the performance of rechargeable LiFePO4
battery pack describes the type, performance, technical
characteristics, warning and caution of the battery pack.
SPECIFICATION
| NO | Items | Description | | Normal Specification | | 1 | Nominal Voltage | 12.8V | | 2 | Normal Capacity | 300Ah | | 3 | Internal Resistance | ≤20mΩ | | 4 | Series-Parallel application | Not allowed | | 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 |
| NO | Items | Description | | Mechanical Characteristics | | 16 | Dimension | Length 520±3mm | | Width 269±3mm | | Height 221±3mm | | 17 | Weight | Approx. 37.7Kg | | Storage | | 18 | Storage Temperature & Humidity Range | Short: within one month | -20~35℃, 45~75%RH | | Long term: above one month | -10~30℃, 45~75%RH | | 19 | Self-discharge rate | Residual capacity | ≤3% per month; ≤15% per year | | Reversible capacity | ≤1.5%per month; ≤8% per year |
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Test Conditions
3.1 Standard Test Conditions
3.1.1 Unless otherwise specified, all performance tests is required
conducted at temperature 25℃±2℃, Humidity less than 45%~75%RH.
3.1.3 Unless otherwise specified, the tested product is required
unused within two month after outgoing.
3.2 Standard Charge Mode
"Standard Charge" means at 25±2℃ charge to limit voltage with 0.33C
constant current, then charge with constant voltage until current
less than 0.02ItA.
3.3 Quick Charge Mode
" Quick Charge" means at 25±2℃ charge to limit voltage with 0.5 C
constant current, then charge with constant voltage until current
less than 0.02ItA.
3.4 Standard Discharge Mode
"Standard Discharge" means at 25±2℃ discharge to the cut-off
voltage with 0.33C current.
3.5 Quick Discharge Mode
"Quick Discharge" means discharge to the cut-off voltage with 0.5C
current.
Electrical Characteristics & Test Condition
Testing Conditions: Ambient Temperature: 25±5℃; Huminity:45%~75%.
| NO | Items | Criterion | Condition |
| 1 | Min Capacity | ≥291Ah | 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:
Golf trolly , Wireless camera, surveillance cameras, wireless
infrared detector, car LCD TV, portable DVD, personal treatment
system, PDA personal data assistant, personal communications
systems, walkie-talkies, digital cameras, camcorders, video
cameras, Bluetooth devices, CD players, MD players, MP3 players,
smart cards, aviation model LED lights and other fields can be used
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!!!
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
Battery Pack Delivery
• By Air Door to Door Service
• By Sea Door to Door Service
• By Express: EMS, TNT, UPS, FedEx
FAQ
1. Can you accept OEM and ODM services?
Yes, just tell me your requirements and we will provide you with
the best solution.
2. What are your payment channels?
TT, L/C, West Union etc.
3. 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.
4. Is your lithium battery reliable?
Yes. Overcharged, over-discharged, nail penetration test, all
protected by our battery.
5. How you shipping the goods and how long it will take?
Normally FEDEX, DHL,UPS etc, around 4-7 days.
6. 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!
