12V 7Ah Battery
This battery refers to an energy storage device based on lithium iron phosphate (LiFePO4) technology. With a nominal voltage of 12.8V (the operating voltage range is usually between 10V-14.6V, with a nominal value of 12.8V) and a capacity of 7Ah, it can store approximately 89.6 watt-hours (Wh) of energy. Compared with common lead-acid batteries, LiFePO4 is known for its excellent thermal and chemical stability, 3000 deep cycle life, and maintaining a stable voltage platform during most of the discharge process.
12.8V 7Ah Rechargeable Battery Beneftis
- Lasts dramatically longer, saving money & hassle
- Significantly lighter, easier handling
- Superior safety for peace of mind
- Stable power for better device performance
- More usable energy, real capacity
- Eco-friendly choice
- Maintenance-free & low self-discharge
- Choosing a 12v 7ah lithium ion battery is a smart investment in performance, life, safety and convenience, especially as a direct upgrade from traditional 12V 7Ah lead-acid batteries.
12V 7Ah li-ion battery specification
-
Work Voltage Range 10.8~14.6V
-
Nominal Voltage 12.8V
-
Nominal Capacity 7Ah
-
Rated Energy 89.6Wh
-
Max Discharge Power 128W
-
Standard Charge Current 2A
-
Recommend Charge Current 3.5A
-
Max Charge Current 7A
-
Recommend Discharge Current ≤7A
-
Max Continue Discharge Current 10A
-
Peak Discharge Current (10S) 20A
-
Resistance ≤20mΩ
-
Lifespan (20℃, 0.5C, 80% DOD) > 6000
-
Waterproof IP65
-
Weight 1Kg
-
Dimensions 151 * 65 * 94mm
-
Terminal F2
Hongyitai Batery Charging & Discharing Curve
12V 7Ah rechargeable battery performance curve
On the left are 6 charge discharge curves of 12v 7ah lifepo4 battery.
- Different discharge rates curve at 0.1C, 0.2C, 0.5C and 1C.
- Different temperature discharge curve at -10℃, 0℃, 10℃, 20℃, 30℃, 40℃ and 50℃.
- State of charge curve.
- Charging characteristics.
- Cycle life curve at 30%, 50%, 80% and 100%.
- Self discharge characteristics curve at 10℃, 25℃, 30℃, 40℃ and 50℃.
LiFePO4 12V 7Ah Replacement Lead Acid Battery (SLA)
Replacing a traditional 12V 7Ah sealed lead-acid battery with an advanced lithium iron phosphate (LiFePO4) battery can significantly improve your device’s performance, extend its lifespan, and reduce its weight. However, before making the switch, ensure compatibility and safety.
Size compatibility. Before replacing your LiFePO4 battery, be sure to accurately measure the length, width, and height of your existing lead-acid battery and confirm the actual available space in the battery compartment of your device.
Voltage compatibility. Most devices designed to work with 12V SLA batteries (12V nominal, operating voltage range of about 10.5V-13.8V) will generally work well with 12V LiFePO4 batteries.
Comparison of LiFePO4 vs. SLA (12V 7Ah)
| Feature | 12V 7Ah LiFePO4 Battery | 12V 7Ah SLA Battery | LiFePO4 Advantages |
|---|---|---|---|
| Weight | 0.8 – 1.2 kg | 2.0 – 2.5 kg | Reduce equipment weight |
| Cycle Life | 2000 ~ 7000+ | 200 ~ 500 | 5-10 times longer lifespan |
| Voltage | Voltage stability | The voltage drops rapidly with discharge | The equipment performance is more stable |
| Safety | Higher | Relatively low | Safer to use, less risky |
| Maintenance | Completely maintenance-free | May require maintenance | Save time and effort |
| Eco-friendly | More environmentally friendly | Lead | More environmentally friendly |
| Cost | Higher cost | Lower cost | Long-term total cost of ownership (TCO) may be better |
How to charge 12v 7ah battery
Choose the right charger
You must use a charger designed specifically for lithium iron phosphate (LiFePO4 / LFP) batteries.
Why must you use a dedicated charger?
LiFePO4 batteries require a precise constant current/constant voltage (CC/CV) charging profile, typically charging to 14.4V or 14.6V and stopping.
Lead-acid chargers use different charging logics and may include high-voltage equalization modes or continuous floating charge modes that are harmful to LiFePO4, which can severely damage the battery, shorten its life, and may even cause the internal BMS protection board to fail or cause safety issues.
How to identify the correct charger?
Look for labels that clearly state “LiFePO4” or “Lithium Iron Phosphate” compatibility. Make sure the charger’s output voltage specification matches your battery (usually 14.4V or 14.6V, please refer to the battery specification).
Select an appropriate charging current. For a 7Ah battery, the recommended charging current is 0.2C (1.4A) to 0.5C (3.5A). Charging with excessive current may shorten the battery life (unless the battery specification specifically allows).
12V 7Ah battery box applications
Hongyitai 12V 7Ah lithium iron phosphate battery has a wide range of uses. Basically, it can be used in places where the same size lead-acid battery was used before, and the performance is much better. It can be used for solar power supply, backup power supply for medical equipment, security alarm systems, emergency lights, small electric scooters, toy car, fish finders for fishing, etc. As long as you need a stable and reliable 12V power supply, using this lithium iron phosphate battery to replace the old lead-acid battery is definitely a great upgrade.
12V 7Ah LPF battery usage & maintenance tips
Safety first: avoid short circuit, reverse connection, physical damage, overheating, and water immersion
Never let the positive and negative terminals touch each other, such as using a wrench or other metal objects to touch both terminals at the same time, which will cause a short circuit risk. When wiring, the red positive pole should be connected to the positive pole (+), and the black negative pole should be connected to the negative pole (-). Do not connect them in reverse. If you do, the battery or your device may be burned out immediately.
Supports series connection. You can connect up to 4 such batteries in series to form a nominal 48V (about 51.2V) battery pack.
Store the battery in a cool, dry, well-ventilated place away from direct sunlight and heat sources. The ideal storage temperature range is typically between 5°C and 25°C.
FAQs for 12.8V 7Ah Battery
The duration of use of a 12V 7Ah battery depends on the power requirements of the connected device.
The total energy of a 12V 7Ah battery is 84Wh, which is equal to 12V * 7Ah.
Ref 12W loads, its running time: 84Wh / 12W = 7H.
Yes, it is waterproof, with a waterproof rating of IP65.
It mainly depends on the current you use to charge.
If you use a 2A charger, the time will be shortened by half, about 7Ah / 2A = 3.5 hours.
Send it to a special recycling point for recycling. Please be sure to recycle used lithium iron phosphate batteries through formal channels.
Get in touch
Get the 12V 7Ah Lifepo4 battery price today
Hongyitai has been producing and selling lifepo4 battery packs since 2014, and we are happy to custom specific lithium-ion battery as your requests. Contact us and get a good price today.
