12V 12Ah LiFePO4 Battery Pack
This page describes a 12V pack at 12Ah, model LF4020-7 as listed, with a nominal voltage of 12.8 V and an energy figure of 153.6 Wh. Its listed specification includes a 32700-format cell arrangement, an IP55 housing and a weight of about 1.4 kg. It is the middle model in the listed 12V range, between the 6Ah pack and the 36Ah pack.
Listed specification in context
The charge current is listed at 6 A, with a maximum of 12 A, and the discharge current at 6 A, with a maximum sustained current of 15 A and a pulse current of 30 A for less than 3 seconds. The cut-off voltage is listed at 10.0 V. Those limits describe a small pack: the sustained current is modest, so a buyer should check the load carefully rather than assuming that a 12V pack can serve any 12V load. The temperature ranges are listed as charging from 0 to 45 degrees Celsius, discharging from minus 20 to 60 degrees Celsius, and storage from 0 to 45 degrees Celsius.
Cycle life is listed at 2000 cycles under a stated condition: charging and discharging at 0.2C down to 70 percent capacity. The internal resistance is listed at no more than 70 milliohms, and self-discharge at no more than 3.5 percent per month at 25 degrees Celsius. The cell arrangement is listed as IFR32700 cells in 4S2P, and the terminal is listed as M5. Each of those values is stated for this model only.
Use and limits
A battery management system watches the cells in a pack and disconnects the pack when a limit is crossed. The exact limits depend on the model, so buyers should check the protection list for the model they are considering rather than assuming every pack in a range shares the same list. In the models listed on this site, protection typically covers over-charge, over-discharge, over-current, over-temperature and short circuit, with cell balancing on some models only. Where a model page does not list balancing, it is not claimed for that model.
A 12Ah pack is often considered for a small backup or portable use, but the application pages on this site describe uses in general terms and do not change this model's listed limits. If the load needs a sustained current above 15 A, this model is not the right choice, and the 36Ah model or a different voltage should be considered instead. The enquiry should state the load current, the temperature range and the available space, so the manufacturer can confirm the model before an order is placed.
Specification - as listed for this model
| Item | Listed value |
|---|---|
| Model (as listed) | LF4020-7 |
| Nominal voltage | 12.8 V |
| Capacity | 12Ah |
| Energy | 153.6 Wh |
| Internal resistance | At most 70 mΩ (listed) |
| Cycle life | 2000 cycles (0.2C charge/discharge to 70% capacity, listed) |
| Self-discharge | At most 3.5% per month at 25°C (listed) |
| Charge current | 6 A; maximum 12 A (listed) |
| Discharge current | 6 A; maximum sustained 15 A; pulse 30 A for less than 3 s (listed) |
| Cut-off voltage | 10.0 V (listed) |
| Charge temperature | 0-45°C (listed) |
| Discharge temperature | -20 to 60°C (listed) |
| Storage temperature | 0-45°C (listed) |
| Protection rating | IP55 (listed) |
| Cell arrangement | IFR32700, 4S2P (listed) |
| Housing | Plastic housing (listed) |
| Dimensions | 151 x 99 x 96 x 97 mm (listed) |
| Weight | About 1.4 kg (listed) |
| Terminal | M5 (listed) |
Values above are taken from the listed specification for this model only. They are not a range-wide promise. Items not listed here are confirmed per model in the enquiry.
Enquiry checklist
Before sending an enquiry, note the voltage, capacity, quantity, application and any required certification document. State whether the pack will be used indoors or outdoors, and whether a display or a particular terminal type is needed. Minimum order quantity and lead time are unavailable on this site and are confirmed per model in the enquiry. Quotations are confirmed per order.
Send an enquiry | Telephone: +86-755-29040095, +86-18576759460 | Email: michael_he@yabopower.com
Frequently asked questions
How do I get a quotation?
Send an enquiry with the voltage, capacity and quantity you need, plus the application. Quotations are confirmed per order, and specifications are confirmed per model before payment. This site does not list fixed selling figures.
What certification documents can you provide?
ISO 9001 is stated by the company. Certificates are available upon request. If a buyer needs a certificate for a specific model, ask for it in the enquiry and name the model, so the correct document can be checked.
Are the specifications on this page valid for every model?
No. Specifications are shown per model and must not be read across the whole range. Where a value is not listed for a model, the page says to confirm per model rather than filling in a generic figure.