48V 100Ah Group 24 LiFePO4 Battery Set
- BCI Group 24 Size (10.2 x 6.6 x 8.2 in & 23 lbs)
- 100Ah of capacity & 1280Wh of energy
- Best Value at an average of 0.15$/Wh.
- Ideal for RVs, trolling motors, marine, home storage, off-grid, and golf carts.
- EV Grade-A prismatic cells with 5000-15000 DOD and 10+ years battery life.
- 100A BMS with 100% protection
- Low-temperature cut-off protection (triggers below-4℉)
- 1/3 smaller, 2/3 lighter but 2X usable energy of a 12V 100Ah lead-acid battery.
- ABS case for better external protection & built-in metal frame for internal protection.
- Max. 4S4P to build a 20.48 kWh power tank.
- Fast shipping & delivery, 5+2 years warranty, professional support and well-packaged.
- Certified by IEC/ROHS/CE/FCC/UN38.3/Class9
48V 100Ah Group 24 LiFePO4 Battery Set is backordered and will ship as soon as it is back in stock.
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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
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
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Description
Description
-
Multiple Applications: Ideal for RVs, vans, campers, and also suitable for home storage, off-grid systems, golf carts, trolling motors, and more.
- High Performance: This lithium battery offers a capacity of 100Ah with a standard voltage of 12.8V. Its 100% DOD (Depth of Discharge) guarantees a consistent and steady journey.
- Built-in BMS Protection: Featuring an integrated 100A BMS protection system, the lithium battery automatically disconnects if the discharge current exceeds 300±50A, ensuring optimal safety.
- Drop-in Replacement: Compactly designed at 10.2 x 6.6 x 8.2 inches (26 x 17 x 21 cm) and weighing nearly 2/3 lighter (23.2 lbs / 10.5 kg) than a lead-acid battery, this lithium battery fits seamlessly into a Group 24 battery box, maximizing energy density without requiring a larger box.
- Low Temperature Protection: Engineered to withstand extreme temperatures, the lithium battery operates efficiently in conditions as low as -4℉ (-20℃) and as high as 158℉ (70℃), adapting seamlessly to various climates.
- Series or Parallel Connection: Easily connect up to 4 batteries in series or 4 packs in parallel, achieving a remarkable capacity of up to 20.48kWh. Customize the connection to suit your needs.
- Waterproof: With IP65-rated waterproof protection, this lithium battery ensures reliable performance in wet and challenging environments, making it ideal for outdoor and marine applications.
- Automotive Grade A+ Cells Only: Supporting up to 5,000 cycles at 100% DOD, these cells come with multiple safety certifications and built-in overcharge, over-discharge, overcurrent, and short-circuit protection to ensure safety in various conditions.
- 3 Charging Methods: Charges up to 5 times faster than a lead-acid battery. (WattCycle LiFePO4 battery charger, solar panel, or generator)
- Registration for Extended Warranty: The battery comes with a default 5-year warranty, which can be extended to 7 years with registration on the official website.
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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.

Only Grade A+ Cells
Grade A+ cells typically refer to battery units that incorporate high-quality, high-performance cells. Specifically. These cells often exhibit the following characteristics and benefits:
1) High Energy Density
2) Long Cycle Life
3) High Safety Standards
4) Stable Performance

Intelligent BMS, Eightfold Safety Protection
Battery Management System: A crucial component in lithium-ion batteries and other rechargeable batteries, responsible for monitoring and managing the battery's performance.
8X Safety Protection: Over-current / Over-charge / Over-discharge / Over-load / High Temperature / Low Temperature / Short Circuit / Equalization Protection
Working as Usual in Extreme Weathers
Charge Temperature: 0℃ to 50℃ / 32℉ to 122℉
Discharge Temperature: -20℃ to 70℃ / -4℉ to 158℉
Group 24 Size, Universal Fit
Typical dimensions for a Group 24 battery:
Length: 10.25 inches (260 mm)
Width: 6.81 inches (173 mm)
Height: 8.87 inches (225 mm)
Please double-check the specific dimensions provided by WattCycle to ensure a perfect fit, as slight variations can occur.
Lighter, Smaller & More Energy
62~69% Lighter | 27% Smaller | 178~247% Energy Increases
Versatile Compatibility for RVs with Different Configurations
Application 1: RV System
Application 2: Home Storage
Precautions before Connections
-
Do not use lead-acid battery chargers to charge lithium batteries
For the sake of safety and battery life, the lead-acid battery charger cannot be used for charging our batteries.
-
No using as the starting battery
Lithium batteries are not intended for use as starter power sources. Please do not perform this operation.
-
Kind Reminding for Connections
Before you perform series or parallel connections with lithium batteries, please ensure that you have followed the above principles.
More Applications, More Possibilities
RV / VANS / Camper / Off-grid / Home Storage / Trolling Motors
Tech Specs
GENERAL
| Dimensions (Inches) | 10.2 (L) x 6.6 (W) x 8.2 (H) |
| Weight | 23.0lbs / 10.5kg |
| 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 | 100Ah |
| Energy | 1280Wh |
| 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 | 100A |
| Max. Continuous Output Power | 1280W |
| Max. Continuous Charge Current | 100A |
| Max. Continuous Discharge Current | 100A |
| Max. Discharge Current | 300±50A (≤5s) |
CHARGE
| Charge Voltage | 14.6V ± 0.2V |
| Charge Method | CC / CV |
| Recommend Charge Current | 20A (0.2C) |
| Charge Temperature | 0℃ to 50℃ / 32℉ to 122℉ |
| Discharge Temperature: | -20℃ to 70℃ / -4℉ to 158℉ |
| Storage Temperature | -10℃ to 50℃ / 14℉ to 122℉ |
| Low-Temperature Protection | Yes (32℉/0℃) |
| Low-Temperature Charging Protection Auto Recovery | Yes (41℉/5℃) |
Frequently Asked Questions
Can I use it as the starting battery?
Can I use it as the starting battery?
A: No, it is designed for deep cycle energy storage, not for starting devices. For optimal performance and battery life, please use a dedicated starting battery.
What is a Group 24 battery?
What is a Group 24 battery?
A: A Group 24 battery is a standard size battery, dimensions are approximately 10.5 (L), 6.19 (W), and 8.88 (H) Inches. There might be slight variations depending on the specific manufacturer and model within the Group 24 category.
They are primarily designed as deep cycle batteries. This means they are built to provide a steady flow of power over a longer period, making them ideal for applications like powering RVs, boats, or running electronic devices off-grid with solar panels or wind turbines.
How to charge it?
How to charge it?
A: 3 Easy Options
1. Solar Power:
Harness the sun's energy! With effective sunshine for 4.5 hours a day, a 300W solar panel system can fully charge your battery in a single day.
Solar panel flexibility: Larger solar panels (greater than 300W) can also charge your battery, but charging times may vary depending on sunlight intensity and duration.
2. Generator/Alternator:
Compatible power source is key: Ensure your generator or alternator provides a DC output. In this case, a DC-to-DC charger is needed to connect it to the battery.
AC output option: If your generator/alternator uses AC output, consult our recommendations for a suitable battery charger to connect it to your battery.
Charging recommendations:
Recommended Charging Voltage: 14.6V ± 0.2V
Recommended Charging Current:
20A (0.2C): Charges the battery to 100% capacity in approximately 5 hours.
50A (0.5C): Charges the battery to around 97% capacity in approximately 2 hours (faster charging, slightly lower capacity).
3. LiFePO4 Dedicated Chargers (for 12V Batteries):
Recommended charger: We recommend using a 14.6V battery charger specifically designed for LiFePO4 batteries.
Charging recommendations:
Recommended Charging Voltage: 14.6V ± 0.2V
Recommended Charging Current:
20A (0.2C): Charges the battery to 100% capacity in approximately 5 hours.
50A (0.5C): Charges the battery to around 97% capacity in approximately 2 hours (faster charging, slightly lower capacity).
Overall, we offer you the flexibility to choose the charging method that best suits your needs.
Do you have battery box for this battery?
Do you have battery box for this battery?
A: Not yet, the battery perfectly fits the Group 24 size battery box. And also it fits higher snap-top battery box like Group 27 and Group 31.
How long to charge the battery?
How long to charge the battery?
A: We recommend using a 14.6V battery charger specifically designed for this battery.
Charging recommendations:
Recommended Charging Voltage: 14.6V ± 0.2V
Recommended Charging Current: 20A (0.2C):
Charges the battery to 100% capacity in approximately 5 hours.
Can I safely charge it in cold weather (below freezing temperatures)?
Can I safely charge it in cold weather (below freezing temperatures)?
A: It has a recommended charging temperature range of 32°F to 122°F (0°C to 50°C).
Built-in Protection: For your safety and to optimize battery life, this battery features low-temperature charging protection. This function automatically cuts off charging when the temperature falls below 0°C (32°F).
Additional Tips: While the battery can be charged within this range, colder temperatures may slow down the charging process.
Whenever possible, it's recommended to charge your battery within the ideal temperature range for optimal performance and battery health.
What is the maximum connection in series or parallel?
What is the maximum connection in series or parallel?
A: Expand your power options! You can connect up to four batteries in series or parallel configurations (denoted as 4S or 4P). This allows you to increase the voltage (series) or capacity (parallel) of your battery system to meet your specific needs.
For safe and optimal performance, please follow these connection guidelines:
*Brand: You can only connect WattCycle brand batteries (ensure compatibility).
*Type: All batteries must be lithium type.
*Voltage: All batteries must have the same voltage (12V in this case).
*Capacity: All batteries must have the same capacity (100Ah).
*BMS: Ensure all batteries have the same Battery Management System (BMS).
*Purchase Date: Ideally, connect batteries purchased within 3-6 months of each other (for similar performance characteristics).
Not following these guidelines could damage your batteries.
We recommend consulting a qualified professional for assistance with battery connection.
What is the maximum output energy I can get?
What is the maximum output energy I can get?
A: 20.80kWh.
With the 4S4P configuration, this allows you to quadruple the voltage (series) and capacity (parallel) of your battery system for maximum output energy.
Then the maximum output energy you get is equal to 20.80kWh. (12.8V*4*100Ah*4=20.80kWh)
What is the DOD?
What is the DOD?
A: DOD stands for "deep discharge" and refers to the percentage of a battery's total capacity used during each charge cycle.
In the case of lithium batteries, it is generally recommended to keep the depth of discharge (DOD) between 20% and 80% to extend the life of the battery.
As for the WattCycle 12V 100Ah LiFePO4 Battery, you can get 4,000 cycles at 100% DOD, 15,000 cycles at 60% DOD and 20,000 cycles at 40% DOD.

















