Water sports battery 24V 12Ah marine engine lithium battery rechargeable battery pack
1. General Information
This specification defines the performance of the rechargeable Lithium Ion Battery battery pack GUANYU-FF028 produced by Shenzhen Guanyu New Energy Technology Co., Ltd., and describes the type, performance, technical characteristics, warnings and warnings of the battery pack
2. Specification(@Battery initial Temp25±5℃)
| NO. | Items | Criteria | Remarks |
| 2.1 | Rated Capacity | 12Ah | |
| Minimum Capacity | 11Ah | |
| 2.2 | Energy | 150W | |
| 2.3 | Nominal Voltage | 24V | |
| 2.4 | Outgoing Voltage | ≥12V | |
| 2.5 | Internal resistance | ≤20mΩ | |
| 2.6 | Limited charge voltage | 12.6±0.2V | |
| 2.7 | Floating charge voltage | 12±0.2V | |
| 2.8 | Standard charge current | 2A | |
| 2.9 | Maximum charge current | 3A | |
| 2.10 | Standard discharge current | 6A | |
| 2.11 | Maximum discharge current | 12A/Continuous for 1 hour | |
| 2.12 | Pulse discharge current | 15A/Continuous for 15 min | |
| 2.13 | Discharge cut-off voltage | 9.0V | |
| 2.14 | Dimension | customizable | |
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| 2.15 | Weight | Approx: 2kg | |
| 2.16 | Operating Temperature | Charging:0～45℃ |
| Discharging:-20～60℃ |
| Recommended operating temperature:15℃～35℃ |
| 2.17 | Self-discharge rate | Residual capacity:≤3%/ month;≤15%/years |
| Reversible capacity: ≤1.5%/ month;≤8%/years |
| 2.18 | Storage Temperature & Humidity Range | Less than 1 month:-20℃～35℃,45%RH～75％RH |
| Less than 3 months:-10℃～35℃,45%RH～75％RH |
| Recommended storage environment: 15℃～35℃,45%RH～75％RH |
| Long time storage: If the battery need be stored for a long time, the voltage should be 11V(50%SOC), and stored in the condition as storage proposal. It need at least one charge & discharge cycle every six months |
3. 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.
4. Protective circuit specification
The batteries are supplied with a Lithium Ion 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.
| NO. | Items | Content | Specification |
| 4.1 | 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 |
| 4.2 | Over discharge | Over-discharge protection for each cell | 2.50±0.05V |
| Over-discharge release for each cell | 3.00±0.05V |
| Over-discharge release method | Charging recovery |
| 4.3 | Over current | Discharge over current protection | 10±5A |
| Protection delay time | 50~150ms |
| Over current release method | Release after cutoff the load. |
| 4.4 | Short | NO. | Ban electrode short circuit |
| 4.5 | Battery temperature | Charge over temperature | Protection @55±5℃ |
| Release @45±5℃ |
| Discharge over temperature | Protection @65±5℃ |
| Release @55±5℃ |
| Charge low temperature | Protection @0±5℃ |
| Release @10±5℃ |
| Discharge low temperature | Protection @-20±5℃ |
| Release @-10±5℃ |
| MOSFET over temperature | Protection @100±5℃ |
| Release @90±5℃ |
| 4.6 | LCD Screen: | Short press a switch, light and display screen: voltage temperature residual capacity current, light up after waiting for screen to go out, after 60 s into power saving state (buzzer open state, the buzzer alarm detection background), short press it again to light up the screen. |
| 4.7 | Buzz: | Buzzer open state: SOC 10% or less, buzzer alarm, long press switch 3 s, buzzer close and screen OFF buzzer hints |
| Buzzer is turned off, when the SOC 50% or less, need to manually by 3 s starting buzzer long (SOC testing and determine whether the alarm). |
| Buzzer is turned off, charging when the battery pack is SOC > 50%, the buzzer closed automatic reset, in an open position. |
1. The motherboard socket: Pin1 to 12V+,Pin2 to B, Pin2 to A and Pin4 to GND.
2. The LCD panel socket:Pin1 to 12V+,Pin2 to B, Pin2 to A and Pin4 to GND.
3. Battery iron box matching LCD communication shielding line length is about 1.5 m.
5. Transportation
* Based on the character of cell, proper environment for transportation of LiFePO4 battery pack need to be created to protect the battery.
* Battery should be stayed in the warehouse 15℃～35℃ where it’s dry, clean, shade, and well-ventilated.
* The battery should be stored in 50% SOC during transportation. (The suggest method: Charge the battery fully12.6V, and discharge the battery until reaches the discharge cutoff voltage11V, then charge the battery up to 50% SOC26.4Vand storage in proper circumstance according specification.)
* The battery need to be charged every 6 months if out of use
* Keep the battery against dropping, turning over and serious stacking during loading.
6. Warning & Tips
Before using the battery, please read and follow the specifications and precautions on the surface of the battery. Improper use may cause heat, fire, rupture, damage, or capacity deterioration of the battery. Shenzhen Guanyu New Energy Technology Co., Ltd. is not responsible for any accidents caused by use, which does not meet our specifications.
² The battery must be far away from heat source, high voltage, and avoid to be exposed in sunshine for long time.
² Never throw the battery into water.
² Do not put the battery in a charger or equipment with wrong terminals connected.
² Never connect the positive and negative of battery with metal.
² Avoid excessive physical shock or vibration. don't hit, fall, stamp on the battery
² Without the permission of the manufacturer and guidance, forbidden to remove or to assemble the battery
² Do not use the battery mixed with other different manufacturer, type, or model batteries.
² Keep the battery against high temperature. Otherwise it will cause battery heat, get into fire or lose some function and reduce the life.
² When battery run out of power, please charge your battery timely (≤15day).
² Please use the matched or suggested charger for this battery.
² If battery emit peculiar smell, heating, distortion or appear any abnormity during working or storage, please stop using and take it out from device.
² If the battery leaks and get into the eyes or skin, do not wipe, instead, rinse it with clean water and see doctor immediately.
² Please far away from children or pets.
² Do not put disuse battery into a fire or water.
² It is strictly prohibited any series between the battery packs. Any requirements on serials connection, please contact GUANYU for details.
7. Battery operation instruction
7.1 Charge and discharge
8.1.1 Charging current:Do not surpass the largest charging current that specification stipulated.
7.1.2 Charging voltage:Do not surpass the highest limited voltage that specification stipulated.
10.1.3 Charging temperature:within temperature scope that specification stipulated.
10.1.4 Charge with constant current, then with the constant voltage, no reverse charge, which is dangerous
7.1.5 Special note:
Short time doesn't affect the use of the battery overcharge too, but for a long period of time over
discharge or over charge can affect the function of the battery failure, or the battery can't use permanent, appear serious safety hazards, need long time floating please use the recommended floating model specification.Battery when not in use for a long time, because of its own self-discharge characteristics can also cause discharge, to prevent the occurrence of a discharge, battery should maintain a certain capacity, maintain the voltage at 50% state of SOC.
8. Other Chemical Reaction
Because batteries utilize a chemical reaction, battery performance will deteriorate over time even
if stored for a long period of time without being used. In addition, if the various usage conditions
such as charge, discharge, ambient temperature, etc. are not maintained within the specified
ranges, the life expectancy of the battery may be shortened or the device in which the battery is
used may be damaged by electrolyte leakage. If the discharge time is much shorter than the
normal after full charged, even battery is charged correctly, and this may indicate it is time to
change the battery.
Water sports battery 24V 12Ah marine engine lithium battery rechargeable battery pack
