● The golf trolley battery universal lithium battery has been designed to be compatible with the vast majority of electric trolleys in the market.
● This is an excellent alternative if you are looking to upgrade from a Lead Acid battery to a Lithium.
● It is very lightweight and comes supplied with a special charger. An Anderson connector is also available as an optional extra.
INtroduction:
1. Preface
This specification describes the type and size, performance, technical characteristics, warning and caution of the CLEVA-12.8-20(12.8V20Ah) LiFePO4 rechargeable pack. The specification only applies to CLEVA12.8-20(12.8V20AH) LiFePO4 pack supplied by CLEVA POWER..
2. Product and Model
2.1 Product: LiFePO4 Battery Pack
2.2 Model: CLEVA12.8-20(12.8V22AH), 26650-3.2V-4S7P
2.3 Picture And Output Wire (In order to prevail in kind)
| Positive output wire | Red Anderson Connector | Length:30mm |
| Negative output wire | Black Anderson Connector | Length:30mm |
3. Battery Pack Specifications
| Items | Standard | Comments |
| Nominal voltage | 12.8V | 4S |
| Typical capacity | 20Ah | At 1C discharge rate |
| Max continuous discharge current | 30A | |
| Over current protection | 140±30A | 5ms-20ms |
| Discharge cut-off voltage | 10V | |
| Charge voltage | 14.4±0.1V | Charge mode: CC/CV, Use a constant current, constant voltage(CC/CV) please use special lithium charger. |
| Charge current | 4A | |
| Inner resistance | ≤48mΩ | Between positive and negative polar |
| Operation temperature range | Charge | 0℃~+45℃ |
| Discharge | -20℃~+65℃ | |
| When the environment temperature is higher than 45℃, please pay attention to ventilation and heat rejection. | ||
| Storage temperature range | 0℃~40℃(Capacity 80%) | Recommended long-term storage temperature is 15~25℃ |
| humidity | 5%≤RH≤85% | |
| Shell material | Plastic shell | With Nylon Bag |
| Weight | 2.5±0.2Kg | |
| Output Port | USB | 5V |
| Size(L*W*H) | 168*175*125mm | |
| Protection function | Over charge protection, Over discharge protection, Over current protection, Temperature protection, Balanced function | |
4. Standard Test Conditions
All test in this specification should be in standard atmospheric conditions: temperature: 25± 5℃, relative humidity: 65±20%.
5. Characteristics
5.1 Standard charge
Charge the battery with Lithium ion battery special test cabinet, supply 14.4V voltage, constant-current 0.2C(A) current until current down to 0.02C(A).
5.2 Standard discharge
Discharge the battery at 0.2C(A)to 10.0V or battery cut off voltage.
5.3 Electrical Performance
| Test Items | Test Methods | Test Standards |
| Capacity retention rate | After standard charge under 5.1 specified conditions, store the cells for 28 days, then discharge at 0.2C(A )to cut-off voltage. | Capacity retention rate≥80% |
| Cycle Life | 1) standard charge at 0.2C(A), 2) rest 0.5~1 h 3) discharge at 0.2C to cut off voltage 4) rest 0.5~1h repeat the above steps until 2000 cycles. | Capacity retention rate≥80% |
6. Cell characteristic curve
7. PCM Electrical Characteristics(Ta=25℃)
| NO. | Item | Standard | |
| 1 | Voltage | Charge mode | CC/CV |
| Single cell Charge balance Voltage | 3.6±0.025V | ||
| 2 | Current | Single cell balance current | 36±5mA |
| Self-discharge current | ≤20uA | ||
| continuous charge current/discharge current | 4A/20A | ||
| 3 | Over charge protection | Over charge protection voltage | 3.90±0.025V |
| Over charge release voltage | 3.80±0.05V | ||
| 4 | Over discharge protection | Over discharge protection voltage | 2.00±0.062V |
| Over discharge release voltage | 2.00±0.062V | ||
| 5 | Over current protection | Over current protection current | 140±30A |
| Over current protection delay | 5ms-20ms | ||
| Over current release | Cut off load | ||
| 6 | Short circuit protection | Condition | Outside short circuit |
| Short circuit protection Release time | <600us | ||
| Release condition | Cut off Loading, release automatically | ||
| 7 | Temperature | Working temperature range | -20℃~+60℃ |
| Storage temperature range | -40℃~+85℃ | ||
| Temperature protection | 65±5℃ | ||
8. Cautions
8.1 Charging current should be less than maximum charge current specified in the Product Specification, Charging current bigger than recommended current may damage the battery;
8.2 Discharging current should be less than maximum discharge current specified in the Product Specification;Discharging current bigger than recommended current may damage the battery;
8.3 It should be noted that the cell would be possible to be at a over-discharged state by its self-discharge characteristics in case the cell is not used for long time. In order to prevent over-discharging, the cell shall be charged periodically to maintain between 13.2V and 13.6V (Recommended 3 month one cycle).Over-discharging may causes loss of cell performance, characteristics, or battery functions;
8.4 Please charge the battery within 12 hours after use;
8.5 Battery storage environment follow the above conditions and in standard atmosphere, should be without strong magnet, no power, no static;
8.6 Do not reverse the polarity of the battery pack for any reason;
8.7 Do not short circuit the battery pack;
8.8 Do not reverse polarity charging;
8.9 Battery packs can be combined in series or in parallel, but no more than two sets;
8.10 Do not immerse the battery pack in water or sea water, or get it wet;
8.11 Do not disassemble battery;
8.12 Do not expose the battery to extreme heat or flame;
8.13 Please use special charger for charging;
9. Product Liability
CLEVA POWER is not responsible for the incident caused by not obeying the specifications. Before using the battery, you should read the specifications, usage instruction and some attentions carefully to learn its application method and areas. If the phenomenon such as error using method or wrong circuit connection, or input power data, working index are inconsistent with the specifications, cause damage to product, load and its accessories, we are not responsible for it.
SAFETY
Passed the below abuse and safety test-short-circuit, dropping, nail penetration, impact, crush, thermal shock, over-charge, over-discharge: no fire, no explosion with stable chemical structure.
Certificates:
Transportation:
