12V 200Ah LiFePO4 Deep Cycle Lithium Battery - WattCycle – WattCycle-US

Direct from Official Store — Full Warranty and Technical Support.

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⚡️Low Stock: $339.99⚡️ WattCycle 12V 200Ah LiFePO4 Deep Cycle Battery with Low Temp Protection

Sale price $339.99 Regular price $529.99

User Manual

Shipping Service

Destinations:

  • We only ship orders toContinental 
  • Currently we DO NOT ship to Alaska, Hawaii, and Puerto Rico.

Shipping Fee:

  • FREE shipping on all orders
  • Shipping method: UPS Ground

Shipping time:

The time frame of an order delivery is divided into two parts:

  • Processing time: 1-2 business days
  • Shipping time: 2-5 business days
  • The shipping will delay for some objective or uncontrolled reasons. We will notice our customer ahead for delays.

Tracking Your Order:

  • Once your order ships, you will receive a confirmation email with a tracking number. You can use this tracking number to track the progress of your shipment on the carrier's website.

Warranty Policy

WattCycle Warranty Policy

Thank you for choosing WattCycle. This warranty policy applies to all products purchased through official WattCycle channels and authorized distributors. Please read this policy carefully before installation and use.

I. Warranty Commitment

WattCycle warrants to the original consumer that under normal use conditions, products shall be free from defects in material and workmanship from the date of original purchase.

1. Warranty Period

Product Category

Specific Model/Series

Base Warranty

Extended Warranty (with Registration)

LiFePO4 Batteries

All new battery models

5 years

2 years (7 years total)

Like-New Products

All like-new models

1 year

Battery Cells

All models

No warranty

Accessories

Chargers, inverters, controllers, wiring cables, etc.

1 year

Note: Extended warranty must be activated through product registration on the official WattCycle website within 3 months of purchase.

2. Warranty Period Calculation

  • The warranty period begins from the original consumer’s purchase date.
  • Valid proof of purchase (order screenshot, invoice, etc.) is required to establish the purchase date.
  • Repaired or replaced products do not extend the original warranty period, which remains based on the original purchase date.

II. Warranty Claim Process and Fees

1. Claim Process

  • Step 1: Contact WattCycle Customer Service (service@wattcycle.com), describe the issue, and provide proof of purchase.
  • Step 2: Our technical team will contact you within 24-48 hours to assist with troubleshooting.
  • Step 3: Once the issue is confirmed as a quality defect, customer service will provide a Return Merchandise Authorization (RMA) number and return instructions.

2. Fee Responsibility Rules

Scenario

Resolution

Shipping Responsibility

Notes

Quality issue (within 6 months)

Free replacement/refund

WattCycle covers shipping costs

Requires quality defect confirmation, valid proof of purchase, within warranty period.

Quality issue (after 6 months, within warranty)

Free replacement

WattCycle covers shipping costs

Requires quality defect confirmation, valid proof of purchase, within warranty period.

Personal reason (return within 30 days)

Return for refund

Customer bears return shipping

Original packaging intact, product in good condition. Warehouse restocking fees will be charged.

Personal reason (return after 30 days)

Return for refund

Customer bears two-way shipping

Warehouse restocking fees and depreciation fees will be charged.

Wrong item shipped / Missing item / Transit damage

Free replacement

WattCycle covers shipping costs

/

Order cancellation (before shipment)

Refund

No shipping charges incurred

/

Over 6 months (non-quality issues)

Returns not accepted

/

/

3. Refund Policy

  • Refunds are applicable only for quality issues reported within 6 months of purchase. Quality issues identified after 6 months will be resolved through product replacement.
  • The refund amount will be calculated after final verification, deducting any applicable fees, and returned via the original payment method.
  • Refunds will be processed via the original payment method within 3-5 business days after receipt and inspection of the returned product.

III. Warranty Exclusions (Limitations of Liability)

This warranty does not apply to damage or malfunction caused by:

1. Accidents and Force Majeure

  • Accidents, abuse, misuse, or negligence
  • Natural disasters such as fire, flood, lightning, earthquakes, extreme temperatures

2. Improper Use and Installation

  • Failure to follow installation, operation, or maintenance instructions in the product manual
  • Voltage/current mismatch, reverse polarity connection
  • Use of incorrect fuses or undersized cables
  • Series or parallel connections exceeding permissible limits (e.g., systems exceeding 48V)
  • Mixing with other battery brands

3. Unauthorized Modifications or Repairs

  • Any disassembly, modification, or repair by unauthorized personnel
  • Altered, damaged, or removed serial numbers

4. Normal Wear and Tear and Commercial Use

  • Cosmetic wear or scratches from normal use.
  • Natural capacity degradation over time (normal aging).
  • Use exceeding the product’s designed cycle life or technical specifications.

5. Long-Term Inactivity

  • Damage resulting from failure to perform periodic charging maintenance for over one (1) year.

6. Other

  • Inability to provide valid proof of purchase.
  • Products that have been fully refunded through other means.

IV. Final Provisions

  • WattCycle reserves the right of final interpretation of this warranty policy.
  • This policy may be revised periodically. All changes will be published on our official website.

Contact Information:

📧 Official Customer Service Email: service@wattcycle.com

🌐 Official Website: www.wattcycle.com

Youtube Reviews

Power Your Adventure Longer!

Stable & Reliable

Description

  • High Capacity & Lightweight: WattCycle 12V 200Ah lithium battery with 2560W continuous output power and 2560Wh energy is only 20.5kg as well as its energy density is 124.88Wh/kg, while 2 pcs 12V 100Ah lead-acid batteries are 13.70Wh/kg.

  • EV Grade A+ LiFePO4 Cells: WattCycle 12V 200Ah deep cycle LiFePO4 battery is equipped with EV grade A+ battery cells, providing more than 5000+ cycle life, and 10 years lifespan. Compared with lead-acid batteries, WattCycle LiFePO4 batteries are non-toxic and eco-friendly energy, offering higher chemical stability, guaranteeing quality and safety.

  • Comprehensive BMS Protection:  WattCycle 12V 200Ah deep cycle LiFePO4 battery is equipped with 200A BMS, which can protect against overvoltage, overcurrent, over-discharge, short-circuit, overcharge, and extreme temperature (high and low temperature). Also, it can cell balancing.

  • Up to 40.96 kWh Energy Solution: WattCycle 12V deep cycle LiFePO4 batteries support max. 4 in series and max. 4 in parallel. 200Ah lithium batteries can build a 48V 800Ah battery system, providing continuous charge- and discharge current 800A, massive 40.96kWh energy and 40.96kW output power.

  • Wide applications: All WattCycle batteries are deep cycle LiFePO4 batteries, they are the best choice for your RVs, home storage, and even your marine applications.

Reviews (1101)

Customer Reviews

Based on 1101 reviews
90%
(992)
9%
(97)
1%
(7)
0%
(2)
0%
(3)
S
Steve

I have an older 24 V solar array hooked to 12 V batteries. The batteries were over 10 years old and dying. I did a direct swap and they worked perfectly. I am ordering more.

T
Teresa

Happy with quality snd service

D
Dimitar Ivanov (Bulgaria)
Всичко съвпада с описанието и снимките в сайта

Всичко съвпада с описанието и снимките в сайта. Много бърза доставка и добро качество. С удоволствие ще си поръчвам от Вас.

P
Pavel Špitt (Czechia)
Perfektní

Za ty peníze a kvalitu, super. Koupeno na základě českých youtuberů, kteří baterii otevřeli a odborně zhodnotili. Provedení po všech stránkách je perfektní.

K
Kevin

Love these batteries

Payment & Security

Payment methods

  • American Express
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  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Highlights | WattCycle 12V 200Ah LiFePO4 Battery Review & Performance Test

Discover the power and performance of the WattCycle 12V 200Ah LiFePO4 Battery in this short review! Watch as our product is put to the test by top influencers, showcasing its high efficiency, reliability, and innovative features.

wattcycle lithium battery lifespan 5000 deep cycles

WattCycle Deep Cycle Battery: Grade A+ Power

  • Brand New EV Grade A+ Cells
  • Superior Quality and Reliability
  • Longer Lifespan
  • High Energy Density
  • Safety and Stability
  • Consistent Performance
  • High Performance in Extreme Conditions
  • Environmental Friendliness
8 protections for WattCycle deep cycle battery

WattCycle Lithium Battery Safety: Premium BMS Protection

  • Max. Cont. Discharge Current: 200A
  • Max. Cont. Charge Current: 200A
  • Max. Discharge Current (5s):300±50A 
lifepo4 battery 12v 200ah low-trmp protection
LiFePO4 12v 200ah battery
WattCycle LiFePO4 Battery 12V 200Ah

Connect in Series or Parallel

You can wire lifepo4 battery 12V 200AH Core Series Batteries in series to build a 24V, 36V, or even 48V system in your RV.

best LiFePO4 battery 12v 200ah
200ah 12v LiFePO4 battery

LiFePO4 Lithium Battery One-Stop Solution

application of LiFePO4 lithium battery
12v battery deep cycle

Choose the Charging Method That Suits You

  • wattcycle lifepo4 battery cherger

    14.6V 20A Charger

    1) 3 Charging Phase: I1, I2, I3
    2) Recommended Charging Rate: 0.1C~5C
    3) Full Charging: 10 hours (0.1C)

  • Solar panels charge the lithium batteries

    Solar Energy Plate

    1) Recommended Charging Current: 0.1C~0.5C
    2) Recommended Charging Voltage: 14.4~14.6V

  • generator recharges wattcycle deep cycle battery

    Power Generator

    1) Charging: DC to DC
    2) Recommended Charger: 20A DC-DC Charger
    3)Full Charging: 5 hours

wattcycle battery Precautions guide

Tech Specs

 

GENERAL

Dimensions (Inches) 19.0 (L) x 6.6 (W) x 9.4 (H) 
Weight 45.20lbs / 20.5kg
Waterproof Rating IP65
Warranty 7 years
Housing Material ABS (Flame Retardant Plastic)
Terminal M8 bolts

BATTERY

Cell EV Grade A+ LiFePO4 Cells
Nominal Voltage 12.8V
Nominal/Usable Capability 200Ah
Energy 2560Wh
Cycle Life 5,000 cycles @100% DOD, 6,000 cycles @80% DOD, 15,000 cycles @40% DOD
Max Depth of Discharge (DOD) 100%
Max. Expansion 4S4P
Certifications SDS/UN38.3/FCC/CE/ROHS/UL
Internal Resistance ≤40mΩ

BMS

BMS 200A
Max. Continuous Output Power 2560W
Max. Continuous Charge Current 200A
Max. Continuous Discharge Current 200A
Max. Discharge Current  300±50A (≤5s)

CHARGE

Charge Voltage 14.6V ± 0.2V
Charge Method CC/CV
Recommend Charge Current 40A (0.2C)
Charge Temperature 0℃ to 50℃ / 32℉ to 131℉
Discharge Temperature: -20℃ to 55℃ / -4℉ to 131℉
Storage Temperature 0℃ to 55℃ / 32℉ to 131℉
Low-Temperature Protection Yes (32℉/0℃)
Low-Temperature Charging Protection Auto Recovery Yes (41℉/5℃)

Frequently Asked Questions

Q1: What are the precautions when I use the battery?

A1:
The battery is classified as a flammable and explosive item. Please use it with caution.
When you are using it, no short circuit, no crush, no disassemble or no incinerate.
And please avoid the mechanical impact.

Q2: What can l use it for?

A2:
It can be use for
1) RV, Camper, Trailer, Caravan, Camping Truck, Bus etc.
2) Solar System + Wind Power System
3) Home Energy System
4) Boat & Fishing
5) Wireless Lawn Movers, Vacuum Cleaner & Washing Machine
6) Portable Video Camera & Portable Personal Computer
7) Car Audio System
8) Light Equipment
9) Emergency Lighting Equipment
10) Fire Alarm & Security Systems
11) Electric Equipment & Telemeter Equipment
12) Toys & Consumer Electronics

Q3: What is the Installation of the battery?asked question

A3:
The default of the new factory battery is [ sleep state ],the first 3 times need to be fully charged, discharged and then fully charged, and then discharged... to fully activate the battery capacity.

Before installation and use, please check the relevant waterproof, shockproof, short circuit prevention, puncture prevention, heat prevention, and prevent the plug and socket from touching the bad ignition and damage the battery.
Lithium batteries are used in parallel: Because the battery is not fully charged before it leaves the factory, please fully charge the battery before parallel installation, and test the voltage of each battery.
It is recommended to keep the voltage difference of each battery within 30mv in order to extend the battery life.
Lithium batteries are used in series: the lithium battery maximum series is4*12V=48V,for the sake of balance.
Before the series, batteries need to be charged firstly, and place the 4 groups of batteries in parallel for more than 12H.

Charging: Please keep the battery pack 30%-60% of the power storage , and charge the battery once every 3 months.
Please select the LiFePO4 charger with a rated voltage of 14.6V according to the parameters specified on the battery nameplate to charge the battery.

Before use:
If you find that there is battery deformation or damage, smelly, smoke or abnormal heat, swelling, water ingress and other abnormal conditions, please do not use, contact the dealer in time to deal with it.

Q4: Does it support the over-current / short-circuit protection?

A4:Yes!

If the over current / short circuit protection is tripped, the BS will shut the battery down and remain disconnected until you remove the battery cables.

While the battery cables are disconnected, we suggest to the battery voltage with the use of a voltmeter. lf it reads above 10.8V reconnect the battery cables.

If you are unsuccessful at obtaining a voltage reading above 10.8V, please contact our technical support team: service@wattcycle.com.

Q5: Does it support communication capability?

A5:
No!
We cannot support the communication capability currently.

Q6: What preparations, tools, and precautions are necessary for installation?

A6:
1. Installation Environment:
The battery should be installed in a clean, cool, and dry location, away from water, oil, and dirt.

2. Equipment or Tools:
1) Proper insulation protection equipment
2) Multimeter, battery cables
3) Battery charger/charge controller

3. Recommendations:
1) Same brand (Due to different BMS settings, do not connect lithium batteries of other brands)
2) Same battery type (LiFePO4) (Do not connect batteries of other types, such as lithium-ion, lead-acid, or other batteries)
3) Same voltage (recommended for fully charged batteries) (12.8V)
4) Same capacity (50Ah)
5) The purchase cycle of the two batteries should not exceed three months.

4. Before Installation:
1) Check for visible damage to the battery, including cracks, dents, deformation, and other visible abnormalities.
2) Ensure that the top of the battery and the terminal connections are clean, free of dirt and corrosion, and dry. If any issues are detected with the battery, please contact us for assistance.
3) Do not short-circuit the battery terminals, as doing so may cause a current surge and result in irreversible damage to the system and battery.
4) Before connecting, confirm the polarity to avoid damaging the battery due to polarity reversal.
5) Use a circuit breaker, fuse, or an appropriate-sized circuit breaker designated by a qualified electrician, licensed installer, or regulatory authority to protect all electrical equipment.

5. Installation Steps:
Step 1: Fully charge the batteries separately.
Step 2: Test the voltage after 15 minutes of standing, which should be greater than 13V.
Step 3: Connect your batteries in series and/or parallel.

Q7: How long does it take to fully charge?

A7:
Charging Tips:
1) Use a 14.6V LiFePO4 battery charger.
2) Recommended charging voltage: 14.4 ~ 14.8V
3) Recommended charging current:
20A - The battery will be fully charged to 100% capacity in approximately 10 hours.
50A - The battery will be fully charged to 100% capacity in approximately 4 hours.

Q8: How should batteries be stored?

A8:
We recommend charging the WattCycle Energy battery to 50%. Then, disconnect the battery from the load by removing the negative wire from one battery.
Overall, the battery's capacity loss is less than 3.5% per month at 77°F. However, if stored in extreme environmental conditions, the capacity loss may increase.

Q9: Can I use it as a starting battery?

A9:
No. it can not be used as starting batteries but energy storage, please do not use them to start any devices.

Q10: What is the life span of it?

A10:
It can be used for 5,000-15,000 life cycles.
Depending on usage, it can be used 10 years or more.
Lead acid and AGM get roughly 300-500 life cycles before their capacity is reduced substantially.
Therefore, even though there is more upfront cost with a WattCycle LiFePO4 Battery, the upgraded saves you big in a long run.

Q11: How do I know what size of LiFePO4 battery I need?

A11:
The size of the LiFePO4 lithium battery you need depends on several factors such as the application, power requirements, space constraints, and desired capacity.
To determine the appropriate size, consider factors such as voltage, capacity (Ah), physical dimensions, and any specific requirements for your application.
If you need assistance in determining the right size, feel free to contact our technical team for personalized guidance. (service@wattcycle.com)