Ampere TimeAmpere TimeAmpere Time
-14%

Ampere Time 12V 50Ah, 640Wh LiFePO4 Battery with 4000+ Discharge Cycles & Built in 50A BMS

$289.99 $249.99SAVE 14%

Free shipping, tax (vary by region) and discount codes calculated at checkout


  • The best portable power supply for you: With 640W output and 640Wh capacity, Ampere Time 12V 50Ah lithium battery provides adequate power for your camping life, lawnmowers, security devices, small Loads, torlling motor(20-30lb thrust) etc. 
  • Perfect replacement for 12V 100Ah lead-acid battery: Ampere Time 12V 50Ah lithium battery provides similar energy to 12V 100Ah lead-acid battery (720Wh=12V×100Ah×60% depth of discharge of lead-acid under 1C discharging rate), but 8 times longer cycle life (4000+ cycles & 10-year life) than lead-acid.
  • 1/6 lightweight | Even a 10-year-old child can move it: Ampere Time 12V 50Ah battery weighs about 11.57 pounds, 1/6 of a 100Ah lead-acid battery (63.9 pounds).
  • 100% Protection | Using without risk: Ampere Time 12V 50Ah lithium battery builds in 50A BMS to protect from over charging & discharging, over current, short circuit, and over temp. Green energy, non-toxic.
  • Less than 1/2 the price | The best investment for your money:  The cost of Ampere Time 12V 50Ah is $0.078/year/Wh and 0.294/year/Wh for 12V 100Ah lead-acid battery. Meanwhile, it is also 1/2 the price of portable power station.


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Your On-the-go Power Supply

Super Lightweight and Powerful

Even A 10-year-old Child Can Easily Move 

 Compared with the 60lbs of a 100Ah lead-acid battery, Ampere Time 12V 50Ah Lithium battery is only 1/6*(11.57lbs) the weight.
For safety reasons, keep the battery out of the reach of children.

Last Longer, Play Harder

Max energy: 640Wh               Max output: 640W

Small or Large? It's Up to You!

Ampere Time 12V 50Ah Lithium batteries support up to Max 4S4P connections to get more energy up to 10.24kWh.

S:Series; P: Parallel
Different scenarios require different battery systems, please consult the Ampere Time service team(service@amperetime.com) for a customized system solution.

Expandable Up to 20.48kW, Living A Life Without Limits

It Is Built Top-notch And Compact

Built-in 50A BMS: Protect from overcharge, over-discharge, overcurrent, and short circuit with excellent self-discharge rate.

Grade A LiFePO4 Cells: Highest-level safety based on UL Testing Certificate for the cell inside the battery, with higher energy density, more stable performance & greater power.

IP65 Protection Class: Made with quality ABS plastic, has a wide range of operating temp: Charge: 0°C to 50°C(32°F to 122°F); Discharge: -20°C to 60°C(-4°F to 140°F), IP65 level waterproof set you free from worrying to install indoors or outdoors.

*NOTE: Do not charge below 0℃; Do not use it as a start battery (such as golf cart), please contact service@amperetime.com for a better solution.

3 Recommend Charging Ways

A variety of charging modes, let you easily enjoy green energy.

Suitable for Various Occasions

What's Inside the Box?

Your On-the-go Power Supply

Super Lightweight and Powerful

Even A 10-year-old Child Can Easily Move 

Compared with the 60lbs of a 100Ah lead-acid battery, Ampere Time 12V 50Ah Lithium battery is only 1/6*(11.57lbs) the weight.
For safety reasons, do not allow children to touch the batteries

Last Longer, Play Harder

Max energy: 640Wh       Max output: 640W

Small or Large? It's Up to You!

Ampere Time 12V 50Ah Lithium batteries support up to Max 4S4P connections to get more energy up to 10.24kWh.

S:Series; P: Parallel
Different scenarios require different battery systems, please consult the Ampere Time service team(service@amperetime.com) for a customized system solution.

It Is Built Top-notch And Compact

Built-in 50A BMS: Protect from overcharge, over-discharge, overcurrent, and short circuit with excellent self-discharge rate.

Grade A LiFePO4 Cells: Highest-level safety based on UL Testing Certificate for the cell inside the battery, with higher energy density, more stable performance & greater power.

IP65 Protection Class: Made with quality ABS plastic, has a wide range of operating temp: Charge: 0°C to 50°C(32°F to 122°F); Discharge: -20°C to 60°C(-4°F to 140°F), IP65 level waterproof set you free from worrying to install indoors or outdoors.

*NOTE: Do not charge below 0℃; Do not use it as a start battery (such as golf cart), please contact service@amperetime.com for a better solution.

3 Recommend Charging Ways

A variety of charging modes, let you easily enjoy green energy.

Suitable for Various Occasions

What's Inside the Box?

Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday
January,February,March,April,May,June,July,August,September,October,November,December
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Ampere Time 12V 50Ah, 640Wh LiFePO4 Battery with 4000+ Discharge Cycles & Built in 50A BMS

$289.99 $249.99