WattCycle 36V 50Ah Group U1 LiFePO4 Battery Set
- Compact: 7.7 x 5.1 x 6.7 inches | 11.4 lbs
- Safe: Low-temperature cut-off protection
- Premium: EV grade A+ LiFePO4 cells
- Durable: 5,000-15,000 deep discharge cycles
- Reliable: Built-in 50A BMS | 640W | 640Wh
- Scalable: Max 4S4P, up to 10.24kWh
- Waterproof: IP65
- Certification: SDS/UN38.3/FCC/CE/ROHS/UL
WattCycle 36V 50Ah Group U1 LiFePO4 Battery Set is backordered and will ship as soon as it is back in stock.
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FAQs
FAQs
Making the switch to LiFePO4 shouldn't be a solo mission. At WattCycle, our dedicated team of engineers and battery experts are just a phone call or email away, ready to answer your questions and guide your lithium journey.
User Manual
User Manual
Shipping Service
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
Warranty Policy
Warranty Policy
At WattCycle, we stand behind the quality and performance of our batteries. We offer a comprehensive warranty to ensure your satisfaction with your purchase.
Please read the product manual carefully before installing and using the product, and use the battery correctly under the instructions of the manual.
Warranty Period
WattCycle warrants that the product will be free from defect in workmanship and material to the original consumer purchaser.
The warranty period starts on the date of purchase by the original consumer purchaser.
1. For the battery >50Ah, the warranty period is 5+2 years.(Extra 2 years warranty service is only for customers of official website.)
2. For the battery ≤50Ah, the warranty period is 3 years.
3. For the battery charger, the warranty period is 2 years.
4. For other battery chargers, the warranty period is 1 year.
Warranty Statement
Any defects in material, workmanship of your product will be covered after you provide any valid proof of purchase and information including but not limited to:
1. A purchased order number made through WattCycle official stores.
2. Sales invoice or order confirmation email that clearly shows the description of the product, its price, and sales channel.
Note: The limited warranty is restricted to the country of purchase. The warranty will be invalid on the items once they are taken or shipped to other countries.
Exclusions of Warranty
1. Misused, abused, damaged by accident or damaged due to force majeure. (e.g. lightning strikes, tornadoes, hurricanes, etc.);
2. Unauthorized modification, repair, dis-assembly or operation not in accordance with the official instructions or manuals;
3. Lost, stolen or full refunded product;
4. Warranty period expired;
5. The battery model on the warranty certificate does not match the actual item;
6. Product wear and tear through the usage of time.
Procedures for Warranty Claims
We’ll assist to analyze the consumer’s problem within 24 hours, and help solve the problem, restore battery usage, and introduce the optimal use method.
If our product fails to work normally, the consumer assists us in completing all the battery testing, and both parties confirm that the product does have quality problems, we’ll send a new battery replacement to the defective battery after it has been returned to our US warehouse by the pre-paid label we prepared. And the defective battery will be checked and tested by our technical team to analyze the problem.
From the date of purchase and within 6 months, if our products have quality problems and cannot work normally, we can provide replacement or refund services; Within 7 months from the date of purchase to the end of the warranty, if our products have quality problems and cannot work normally, we can provide replacement services.
Any product(s) returned for valid warranty service will be shipped at the expense and risk of us. We will provide a pre-paid label to customers who need to return the products to the designated place at the specified time.
Batteries that have been serviced or replaced under their warranty period do not receive extended warranties. Instead, the serviced/replaced battery(-ies) will abide by the original warranty period issued when first purchased.
Changes to This Policy:
We reserve the right to modify this Warranty Policy at any time. We will post any changes to this policy on our website.
Contact Us:
If you have any questions about our Warranty Policy, please feel free to contact us at support.us@wattcycle.com.
We encourage you to read this warranty policy carefully. By purchasing a WattCycle battery, you agree to the terms and conditions of this warranty.
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Reliable Power for Your Adventures
Long-lasting, Lightweight, and Perfect for All Your Needs
Description
Description
- Advanced Lithium-Ion Technology: The WattCycle 12V 50Ah LiFePO4 battery is crafted with the latest lithium-ion materials, ensuring a safer and more eco-friendly alternative to traditional lead-acid batteries. It offers high energy density, long cycle life, excellent safety, and emits no harmful hydrogen gas.
- Grade A+ Cells & Longevity: Built with grade A+ cells and certified by SDS/UN38.3/FCC/CE/ROHS, this battery boasts 20% more range than lead-acid counterparts, delivering stable performance and high efficiency. It supports 5-10 years of use and 5,000-15,000 deep cycles. The integrated 8A BMS ensures safe operation.
- Flexible Configuration: The 12V LiFePO4 battery supports both parallel and series connections for increased capacity and voltage. For optimal performance, use batteries of the same brand, voltage, and capacity, purchased within 6 months. Up to four batteries can be connected in series.
- Versatile Applications: Ideal for RVs, camping, boats, golf carts, trolling motors, wheelchairs, ride-on toys, backup power, emergency lighting, alarms, home energy storage, solar, and wind power systems. When using with ride-on toys, opt for a larger capacitor to prevent power failures due to load protection.
- Reliable Quality & Support: WattCycle batteries offer 3 years of free warranty service and lifetime technical support. For any questions or issues, our support team is dedicated to providing satisfactory after-sales service.
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Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
What's inside the box?
Know Every Part of the Battery
Main Features Summary
-
General
- Dimensions:L19.5 x W13.0 x H17.0
- Weight: 11.46lbs（5.2kg）
- Waterproof Rating: IP65
- Housing Material: ABS (Flame Retardant Plastic)
- Terminal: M8 bolts
-
Battery
- Cell: Grade A+ LiFePO4 Cells
Energy: 640Wh - Cycle Life: 5,000 cycles @100% DOD ~ 15,000 cycles @0% DOD
- Max. Expansion: 4S4P
- Internal Resistance: ≤40mΩ
- Cell: Grade A+ LiFePO4 Cells
-
BMS: 50A
- Max. Cont. Output Power：640W
- Max. Cont. Charge/Discharge Current: 50A
- Max. Discharge Current (5s): 100A±50A
- Low-temp Protection: Yes (32℉/0℃)
- Low-temp Auto Recovery: Yes (41℉/5℃)
-
Charge
- Charge Voltage/Current：14.6V ± 0.2V/10A (0.2C)
- Charge Method: CC/CV
- Charge Temperature: 32℉~131℉ (0℃~50℃)
- Discharge Temperature：-4℉~131℉ (-20℃~55℃)
- Storage Temperature: 32℉~131℉ (0℃~55℃)
Start Your Trip with the Safe & Reliable Battery
Tech Specs
GENERAL
| Dimensions (Inches) | 7.7 (L) x 5.1 (W) x 6.7 (H) |
| Weight | 11.4lbs / 5.2kg |
| Waterproof Rating | IP65 |
| Warranty | 5 years |
| Housing Material | ABS (Flame Retardant Plastic) |
| Terminal | M8 bolts |
BATTERY
| Cell | EV Grade A+ LiFePO4 Cells |
| Nominal Voltage | 12.8V |
| Nominal/Usable Capability | 50Ah |
| Energy | 640Wh |
| Cycle Life | 5,000 cycles @100% DOD, 6,000 cycles @80% DOD, 15,000 cycles @60% DOD |
| Max Depth of Discharge (DOD) | 100% |
| Max. Expansion | 4S4P |
| Internal Resistance | ≤40mΩ |
BMS
| BMS | 50A |
| Max. Continuous Output Power | 640W |
| Max. Continuous Charge Current | 50A |
| Max. Continuous Discharge Current | 50A |
CHARGE
| Charge Voltage | 14.6V ± 0.2V |
| Charge Method | CC/CV |
| Recommend Charge Current | 10A (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: Does it support the short circuit protection?
Q1: Does it support the short circuit protection?
A1:
Yes！
Q2：Does it support communication capability?
Q2：Does it support communication capability?
A2:
Standard shipping normally takes 3-5 days. Next day shipping is available on all domestic orders (for an additional charge). International shipping times depend on the products and destination (estimated at checkout).
Q3: What to do when receive the battery?
Q3: What to do when receive the battery?
A3:
You need to fully charge the battery.
Note: If you want to connect the batteries in series or parallel, please fully charge the batteries.
Q4: Where can l install it?
Q4: Where can l install it?
A4：
The battery should be installed in a clean, cool, and dry location, away from water, oil, and dirt.
Q5: What tools will I use for the installation?
Q5: What tools will I use for the installation?
A5:
1) Proper insulation protection equipment
2) Multimeter, battery cables
3) Battery charger/charge controller
Q6: What preparations, tools, and precautions are necessary for installation?
Q6: What preparations, tools, and precautions are necessary for installation?
A6:
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.
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: Can I connect the battery with other batteries from other brands?
Q7: Can I connect the battery with other batteries from other brands?
A7:
No, you cannot.
When connecting batteries in series and parallel, please follow the following rules.
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.
Q8: What precautions should be taken when using lithium batteries?
Q8: What precautions should be taken when using lithium batteries?
A8:
Use a LiFePO4 battery charger with a maximum charging voltage/current of 14.6±0.2V/50A.
The battery is classified as a flammable and explosive item. Please use it with caution.
DON'T:
Avoid mechanical impact/No short-circuit/No crush/No disassemble/No incinerate/No heat above 150°F/No harge above 15V/No immerse the battery in water or fire/No use batteries from other brands or different types of batteries in series/parallel (due to different BMS settings)/No reverse the battery and charger
DO:
Use a torque wrench to tighten bolts not your hands
Keep the battery away from fire, hazardous substances, or materials.
Q9: What should be considered when charging?
Q9: What should be considered when charging?
A9:
Check if the AC-DC battery charger you are using has a specific lithium charging setting and ensure the following charging requirements are met.
Many battery chargers are designed for lead-acid batteries and may not have suitable settings for lithium batteries.
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 2.5 hours.
50A - The battery will be fully charged to 100% capacity in approximately 1 hour.
Q10: How should batteries be stored?
Q10: How should batteries be stored?
A10:
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.
