Ultimate Guide to Battery Voltage Chart

Most batteries in a power station or solar generator are classified based on voltages. Whether a 12V car battery or a 24V deep cycle battery, the term "battery voltage" is relatively common. The battery voltage chart represents the relation between voltage and the battery's state of charge.

Jackery Explorer Power Stations are designed with high Ah and Wh ratings. They are equipped with lithium-ion batteries, capable of storing and supplying power to most electrical devices. With a power capacity of 2160Wh, the Jackery Explorer 2000 Pro can seamlessly power 96% of home or outdoor appliances.

Jackery Explorer 2000 Pro Portable Power Station

Jackery Explorer 2000 Pro Portable Power Station

- Features 2160Wh battery capacity to power up to 96% of outdoor appliances.

- Equipped with a pull rod and double wheels for portability.

- Functional in temperatures up to -20°C /-4°F

- Smart app control to check the power station’s status.

- Fully upgraded BMS for all-around safety.

What Is Battery Voltage Chart

The term "battery voltage" represents the electrical potential difference between any battery's positive and negative terminals. The battery voltage is crucial because it determines the power or energy your battery can supply, its charge state, and the voltage required for certain electronics.

Battery voltage charts describe the relation between the battery's charge state and the voltage at which the battery runs. These battery charging voltages can range from 2.15V per cell to 2.35V per cell, depending on the battery type. You can check or read a battery's voltage using a multimeter.

Percentage of Charge

12V Battery Voltage

Specific Gravity using Hydrometer

100%

12.70

1.265

95%

12.64

1.257

90%

12.58

1.249

85%

12.52

1.241

80%

12.46

1.233

75%

12.40

1.225

70%

12.36

1.218

65%

12.28

1.204

55%

12.24

1.197

50%

12.20

1.190

45%

12.16

1.183

40%

12.12

1.176

35%

12.08

1.169

30%

12.04

1.162

25%

12.00

1.155

20%

11.98

1.148

15%

11.96

1.141

10%

11.94

1.134

5%

11.92

1.127

0% (Discharged)

11.90

1.120

The Type of Batteries

The battery voltage chart differs depending on the type of battery. Below we'll reveal five different types of batteries.

Lead-Acid: These battery types are economical and extremely popular choices. The heavy and bulkier batteries sometimes leak, making the device unusable.

Lithium-ion: These commonly used battery types have a superior energy density and can store more energy than others. These lightweight batteries are designed for portable devices.

Deep Cycle: A deep-cycle battery is designed to be regularly deeply discharged using its maximum capacity. It has thicker active plates, thicker separators, and higher-density active paste material.

LiFePO4: Also known as lithium iron phosphate or LFP battery, it offers increased power output, reduced weight, longer lifetime, and faster recharging.

AGM: AGM (Absorbent Glass Mat) is an advanced lead-acid battery type. The battery contains positive and negative lead and lead oxide plates that release electrons.

What Is State of Charge and Discharge Chart

State of charge (SoC), usually represented in percentage, is the charge level of an electric battery relative to its capacity. Battery's SoC can be quickly determined by reading either specific electrolyte gravity or terminal voltage.

State of Charge

Sealed or Flooded Lead Acid battery voltage

Gel battery voltage

AGM battery voltage

100%

12.70+

12.85+

12.80+

75%

12.40

12.65

12.60

50%

12.20

12.35

12.30

25%

12.00

12.00

12.00

0%

11.80

11.80

11.80

A battery's depth of discharge (DoD) indicates the percentage of discharged battery relative to overall battery capacity. The depth of discharge (DoD) complements the state of charge (SoC). That means if DoD increases, SoC decreases.

Battery or Battery Pack Ah Rating

30-Minute Maximum Discharge Current

5Ah

10A

7Ah

14A

8Ah

16A

9Ah

18A

10Ah

21A

12Ah

24A

14Ah

31A

15Ah

32A

18Ah

40A

22Ah

46A

35Ah

84A

Battery Voltage Charts

The battery voltage charts track the battery's voltage and maintain the battery. The primary role of voltage monitoring is to extend the battery's lifespan.

Lead-Acid Battery Voltage Chart

Lead-acid battery voltage varies depending on the temperature, discharge rate, and battery type (sealed or flooded).

Flooded lead-acid batteries are cheaper but require proper ventilation and more maintenance. Alternatively, sealed lead-acid batteries need less maintenance and ventilation.

Lead-Acid Battery Voltage Chart

Capacity

6V Sealed Lead Acid Battery

6V Flooded Lead Acid Battery

100%

6.44V

6.32V

90%

6.39V

6.26V

80%

6.33V

6.20V

70%

6.26V

6.15V

60%

6.20V

6.09V

50%

6.11V

6.03V

40%

6.05V

5.98V

30%

5.98V

5.94V

20%

5.90V

5.88V

10%

5.85V

5.82V

0%

5.81V

5.79V

Lithium-ion Battery Voltage Chart

Lithium-ion batteries are most used in power stations and solar systems, all thanks to the built-in additional layer of security. The popular voltage sizes of lithium-ion batteries include 12V, 24V, and 48V. Let's understand the discharge rate of a 1-cell lithium battery at different voltages.

Lithium-ion Battery Voltage Chart:

Capacity (%)

1 Cell

12 Volt

24 Volt

48 Volt

100

3.40

13.6

27.2

54.4

90

3.35

13.4

26.8

53.6

80

3.32

13.3

26.6

53.1

70

3.30

13.2

26.4

52.8

60

3.27

13.1

26.1

52.3

50

3.26

13.0

26.0

52.2

40

3.25

13.0

26.0

52.0

30

3.22

12.9

25.8

52.5

20

3.20

12.8

25.6

51.2

10

3.00

12.0

24.0

48.0

0

2.50

10.0

20.0

40.0

LiFePO4 Battery Voltage Chart

LiFePO4 battery voltage charts reveal the SoC (state of charge) based on different voltages, such as 12V, 24V, and 48V.

LiFePO4 Battery Voltage Chart:

Capacity

12V

24V

48V

100% (charging)

14.6V

29.2V

58.4V

100% (resting)

13.6V

27.2V

54.4V

99%

13.4V

26.8V

53.6V

90%

13.3V

26.6V

53.2V

70%

13.2V

26.4V

52.8V

40%

13.1V

26.2V

52.4V

30%

13.0V

26.0V

52.0V

20%

12.9V

25.8V

51.6V

17%

12.8V

25.6V

51.2V

14%

12.5V

25.0V

50.0V

9%

12.0V

24.0V

48.0V

0%

10.0V

20.0V

40.0V

Deep Cycle Battery Voltage Chart

Deep cycle batteries are among the most used batteries that discharge slowly to a low SoC and recharge again. Here are the deep cycle battery charts for 12V, 24V, and 48V.

Deep Cycle Battery Voltage Chart:

Capacity

12V

24V

48V

100% (charging)

13.00V

26.00V

52.00V

99%

12.80V

25.75V

51.45V

90%

12.75V

25.55V

51.10V

80%

12.50V

25.00V

50.00V

70%

12.30V

24.60V

49.20V

60%

12.15V

24.30V

48.60V

50%

12.05V

24.10V

48.20V

40%

11.95V

23.90V

47.80V

30%

11.81V

23.62V

47.24V

20%

11.66V

23.32V

46.64V

10%

11.51V

23.02V

46.04V

0%

10.50V

21.00V

42.00V

AGM Battery Voltage Chart

An AGM battery voltage chart describes the relationship between the state of charge, current, and voltage. Let's see how different charging or discharging currents affect battery voltages.

AGM Battery Voltage Chart:

Capacity

12V

24V

48V

100% (charging)

13.00V

26.00V

52.00V

100% (resting)

12.85V

25.85V

51.70V

99%

12.80V

25.75V

51.45V

90%

12.75V

25.55V

51.10V

80%

12.50V

25.00V

50.00V

70%

12.30V

24.60V

49.20V

60%

12.15V

24.30V

48.60V

50%

12.05V

24.10V

48.20V

40%

11.95V

23.90V

47.80V

30%

11.81V

23.62V

47.24V

20%

11.66V

23.32V

46.64V

10%

11.51V

23.02V

46.04V

0%

10.50V

21.00V

42.00V

Jackery Portable Power Stations Explained

Jackery is the leading manufacturer of portable power stations and solar solutions. These battery backups for homes or outdoors are designed to provide reliable power to various applications, including emergency power, camping, RVing, etc.

Jackery portable power stations use lithium-ion batteries, best known for their high efficiency and long lifespan. However, the Jackery Explorer 2000 Plus is equipped with a LiFePO4 battery. Some popular charging solutions offered by Jackery include:

Jackery Explorer 500 Power Station

Jackery Explorer 500 features a high-quality lithium-ion battery with a high capacity of 518Wh. It is extremely easy to carry and features multiple AC outlets, carports, and USB-A ports to charge low-to-high power-consuming appliances. You can recharge the power station using car outlets, solar panels, or electric generators.

Customer Review

"This product is awesome. I cannot recommend it enough. Just got through the power outages in Texas, and the Jackery500 came in so clutch. We were able to power some heating pads, our cell phones, and LED lights for 3 days so that our house was lit, and we stayed (sort of) warm." — Nick Athey.

jackery explorer 500 power station

The portable power station has a capacity of 1002Wh and 1000W (2000W peak) output. The lithium-ion battery can be quickly recharged using the AC outlet in 1.8 hours. You can efficiently charge 93% of home or outdoor appliances during emergency backup and RV trips.

Customer Review

"The Jackery Explorer 1000 Pro with 2*80w Solarsaga panels is a great power station for camping and use as an emergency source of household power. It will power most small appliances and charge to a full charge in under 8 hours with 2*80w SolarSaga panels." — Tim.

jackery explorer 1000 pro power station

Equipped with a LiFePO4 battery, the Jackery Explorer 2000 Plus can easily expand from 2kWh to 12kWh. It can power heavy-duty devices up to 6000 watts. The power station has advanced IBC technology and ultra-fast solar charging in only 2 hours.

jackery explorer 2000 plus power station

Power Station

Capacity

Recharging Time

Ports

Appliances

Explorer 500

Lithium-ion

24Ah/21.6V

(518.4Wh)

AC Adapter: 7.5H 

Car Adapter (12V): 7.5H

1 x SolarSaga 100W Solar Panel: 9.5H

AC Output (x1):

110V, 60Hz, 500W (1000W Peak)

DC Output (x2): 12V⎓7A

USB-A Output (x3): 5V⎓2.4A

Car Port (x1): 12V⎓10A

AC Input:

doesn't support direct AC charging - use external AC charger provided

DC Input: 24V⎓3.75A

Light (5W): 88H

CPAP (28W): 15H

Electric blanket  (55W): 8H

Blender (300W): 1.4H

Space Heater (350W): 1.2H

 

Explorer 1000 Pro

 

 

Lithium-ion

46.4Ah/21.6V

(1002Wh)

AC Adapter: 1.8H

Car Adapter (12V): 5.44H

4 x SolarSaga 200W Solar Panel: 1.8H

2 x SolarSaga 80W Solar Panel: 9H

AC Output  (x3):  120V, 60Hz, 1000W (2000W Peak)

USB-A Output (x2):

Quick Charge 3.0x2, 18W Max

USB-C Output (x2):

100W Max, (5V, 9V, 12V, 15V, 20V up to 5A)

Car Port (x1):  12V⎓10A

AC Input: 120V, 60Hz, 15A Max

DC Input: 12V-17.5V⎓8A Max, Double to 16A Max 17.5V-60V⎓11A, Double to 22A/800W Max

Blender (300W): 2.8H

Space Heater (350W): 2.4H

Microwave (700W): 1.2H

Kettle (850W): 1H

Explorer 2000 Plus

LiFePO4 

45.6Ah/ 44.8V DC

(2042.8Wh)

AC Adapter: 2H

Car Adapter (12V): 25H

6 × SolarSaga 200W: 2H

4 × SolarSaga 200W: 3.8H

3 × SolarSaga 200W: 4.8H

2 × SolarSaga 200W: 7H

1 × SolarSaga 200W: 14H

AC Output (×4) 120V~ 60Hz, 20A Max

AC Output (×1) 120V~ 60Hz, 25A Max

USB-A Output (x2): Quick Charge 3.0, 18W Max

USB-C Output (x2): 100W Max, (5V, 9V, 12V, 15V, 20V up to 5A)

Car Port (x1): 12V⎓10A

AC Input: 120V, 60Hz, 15A Max

DC Input: 11V-17.5V, 8A Max, Double to 8A Max 17.5V-60V, 12A Max, Double to 24A/1400W Max

Blender (300W): 5.7H

Space Heater (350W): 4.9H

Microwave (700W): 2.4H

Kettle (850W): 2H

Battery Voltage Chart FAQs

What voltage is considered a bad battery?

When the battery voltage drops to 12.2V, it is considered a bad battery. That means the battery is no longer capable of holding a charge. In such a case, you'll need to replace the battery with a new one.

What voltage is a 12V battery at 50%?

At 50% state of charge, a 12V battery has a voltage of 12.20. The below table reveals the voltage at different percentages of charge of a 12V battery voltage.

Percentage of Charge

12V Battery Voltage

Specific Gravity

100

12.70

1.265

95

12.64

1.257

90

12.58

1.249

85

12.52

1.241

80

12.46

1.233

75

12.40

1.225

70

12.36

1.218

65

12.32

1.211

60

12.28

1.204

55

12.24

1.197

50

12.20

1.190

45

12.16

1.183

40

12.12

1.176

35

12.08

1.169

30

12.04

1.162

25

12.00

1.155

20

11.98

1.148

15

11.96

1.141

10

11.94

1.134

5

11.92

1.127

Discharged

11.90

1.120

How to choose a new battery?

When selecting a new battery, check its Ah (amp-hour) rating. The physical size and terminal type are other crucial factors to remember. The popular types of batteries include lithium-ion and LiFePO4. They generally have a longer lifespan and can hold a charge for more time.

Final Thoughts

Battery voltage is an important term that lets you expand its lifespan. The battery voltage chart will help you identify the proper voltage for careful charging and discharging. As a result, this positively impacts the battery life and ensures the power station is powerful and long-lasting.

Jackery Explorer Power Stations are robust and powerful charging solutions for home or outdoor usage. You can charge these power stations by connecting them with Jackery SolarSaga Solar Panels. Once fully charged, they can supply power to most appliances for longer hours.


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