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Local Free & Fast Delivery
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24/7 Online Support
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30-Day Return & Refund
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5-Year Free Wararnty
- Best Seller
- Smart Bluetooth
- Multi-Protocol
- LCD Control
- Low-temp Cutoff
- Active Balancing
48V 300Ah 15.36kWh Wall Mount LiFePO4 Battery + Free Parallel Cables (Optional 12kW Inverter Bundle)
Lock in the lowest price of 2026! Upgrade your home solar storage or off-grid power setup before prices return to regular retail.
- 15.36kWh Ultra-Large Capacity: Features Grade-A LiFePO4 cells with 6000+ deep cycles. One single 48V 300Ah wall-mount battery provides double the power of standard 100Ah/200Ah units to cover your entire household energy needs.
- Free Parallel Quick Connect Cable Included: Includes a complementary heavy-duty parallel cable set, making multi-battery expansion fast, safe, and cost-effective without extra accessory purchases.
- Optional 12kW Hybrid Inverter Kit: Pair with an optional 12kW split-phase 120V/240V off-grid/hybrid inverter for a plug-and-play complete solar energy storage system (ESS).
- Smart 200A BMS Protection: Built-in intelligent BMS with active balancing supports RS485/CAN/Bluetooth monitoring, providing over-charge, over-discharge, short-circuit, and high-temp protection.
- Space-Saving Wall-Mount Design: Sleek compact wall-hanging design saves valuable floor space, ideal for home garages, basements, workshops, and off-grid cabins.
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Special Add-Ons
Humsienk 48V 12kW Pure Sine Wave Hybrid Inverter | Dual MPPT, 10ms UPS, 6-Unit Parallel
Shop early with total peace of mind! If you purchase any Humsienk product today and the price drops on our official store within 30 days of your purchase, we will gladly refund you the price difference.
- Zero Risk Shopping: Lock in your favorite power setup now before inventory runs out.
- Hassle-Free Price Adjustment: Simply reach out to our customer support team with your order number, and we’ll process your price match refund within 24–48 hours.
- 100% Protection: Valid across all Black Friday & Cyber Monday promotional discounts.
We want you to be completely satisfied with your purchase. HUMSIENK offers a 30-Day Money-Back Guarantee for all orders, allowing you to return or exchange eligible products within 30 days of delivery.
1. Eligibility for Returns
- Timeframe: Return requests must be initiated within 30 days from the date you received your item.
- Item Condition: Items must be in brand-new, unused, and resalable condition, complete with all original packaging, manuals, power cords, and accessories.
- Non-Returnable Items: Custom/special orders, final sale items, or products damaged due to improper installation or misuse are not eligible for non-reason returns.
2. Return Shipping Costs
- Buyer’s Remorse (Change of Mind / Non-Quality Issue): If you are returning an item for personal reasons (e.g., bought by mistake, no longer needed), the customer is responsible for the return shipping fees and any associated LTL freight/restocking charges.
- Defective or Damaged Items: If the product is defective upon arrival or damaged during transit, HUMSIENK will provide a prepaid shipping label and cover all return/exchange costs.
3. How to Initiate a Return
- Contact Support: Email our customer service team at service@humsienk.com with your Order Number, product serial number, and reason for return.
- Receive RMA & Return Address: Our support team will review your request within 24–48 hours and provide Return Merchandise Authorization (RMA) instructions and the local warehouse return address.
- Ship & Track: Package the item securely and share the return tracking number with us.
4. Refund Processing
Once your return is received and inspected at our local US/CA warehouse, your refund will be processed within 3–5 business days. Refunds will be automatically credited to your original payment method.
- Contiguous US Free Shipping: Enjoy 100% Free Shipping on all orders delivered within the contiguous United States — no minimum purchase required.
- Hawaii (HI) Shipping: Deliveries to Hawaii are supported with a flat shipping fee of $1,000 per order.
- Local Warehouse Delivery: All items are stored in and dispatched directly from our local US logistics centers for fast, reliable transit.
- Rapid Order Processing:Standard Express Items: Orders are processed and dispatched within 24 business hours. Tracking numbers are automatically emailed upon shipment.
- In-Stock Standard Express Delivery: Estimated 2–5 Business Days (Contiguous US) (Excludes presale items).
LTL Freight & Heavy Cargo Delivery:
- Applicable Models: 48V 300Ah, 48V 314Ah, and 48V 628Ah battery systems, as well as 48V Bundles/Kits.
- Split Shipment for 48V Bundles: For 48V Bundle systems, items will be dispatched in separate packages via LTL freight—typically Package 1 for the Battery System and Package 2 for Inverters & Accessories. Packages may arrive together or in separate deliveries based on logistics handling.
- Processing & Transit Time: 3–7 Business Days. Please note that LTL shipments require 1–2 business days prior to dispatch for recipient verification, rate finalization, and carrier scheduling. Liftgate service is included.
- Manual Tracking Support: As heavy freight operates outside standard express parcel networks, online auto-tracking may be limited. For real-time status updates on your freight shipment, please contact us at service@humsienk.com.
At Humsienk, we stand behind the quality and performance of our energy storage solutions. We offer flexible warranty coverage based on product category:
- Refurbished / Second-Hand Batteries: 1-Year Limited Warranty
- Accessories & Components: 1-Year Limited Warranty
- Inverters: 2-Year Limited Warranty
- 12V LiFePO4 Batteries (8Ah – 50Ah): 3-Year Limited Warranty
- All Other Battery Systems: 5-Year Limited Warranty
Activate Your Warranty
To ensure full coverage and access fast-track customer support, please register your product serial number via our official Humsienk Warranty Registration Page.
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Local Free & Fast Delivery
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24/7 Online Support
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30-Day Return & Refund
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5-Year Free Wararnty
15.36kWh Wall-Mounted Battery – Expand to 230.4kWh with 15 Parallel Units
Start with 15.36kWh of reliable 48V (51.2V) 300Ah LiFePO₄ storage and scale up as your energy needs grow. Connect up to 15 units in parallel to unlock a massive 230.4kWh capacity – enough for whole-home backup, off-grid independence, or commercial solar storage. Modular, space-saving wall design makes expansion simple and future-proof.
200A
BMS
200A
Continuous
3A
Power
Mechanical | Shell Type Metal | Size 908 x 620 x 218 mm / 35.75 x 24.41 x 8.58 in |
Weight 118 kg / 260.15 lbs ±3% | Nominal Voltage 51.2V | |
Nominal Capacity 300Ah | Energy 15.36 kWh | |
Electrical Characteristics | Terminal M8 | Cycle Life 6,000@DOD80% |
Months Self Discharge s3%/Month | Efficiency Of Charge 100%@0.2C | |
Efficiency Of Discharge 96~99%@0.5C | Charge Voltage 57.6V ± 0.8V | |
Standard Charge/Discharge | Charge Mode CC/CV | Charge Recommended Current 60A |
Max. Continuous Charge Current 200A | Discharge Recommended Current 150A | |
Max. Continuous Discharge Current 200A | Discharge Cut-Off Voltage 40V | |
Charge Temperature 32°F~131°F/0℃C~55°C | Discharge Temperature -4°F~140°F/-20°C~60°C | |
Environmental | Storage Temperature 32°F~113°F/0°C~45°C | Ingress Protection Rating IP54 |
Which Home Storage Battery Fits Your Setup?
| Product |
48V 300AhWall-mounted |
48V 314AhFloor-standing |
48V 628AhWhole Home |
| Capacity | 15.36kWh | 16.07kWh | 32.15kWh |
| Dimensions | 35.04 × 24.41 × 8.58 in | 24.40 x 10.00 x 35.04 in | 33.46 × 16.93 × 28.82 in |
| Weight | 260.15 lbs | 294 lbs | 530.21 lbs |
| BMS Current | 200A | 200A | 200A |
| Bluetooth | |||
| Max Power | 10.24kW | 10.24kW | 10.24kWh |
| IP Rating | IP654 | IP54 | IP65 |
| Best Application | Home Storage, Off-grid, DIY Solar Power, Data Base | Home Storage, Off-grid, DIY Solar Power, Data Base | Home Storage, Off-grid, Data Base |
| Price (USD) | $2,499.99 USD | $2,499.99 USD | $4,299.99 USD |
Frequently Asked Questions
To ensure optimal and safe operation, follow these guidelines :
- Environment: Choose a clean, cool, and well-ventilated area, away from direct sunlight and flammable materials.
- Ambient Temperature: The ideal operating temperature range is between 0°C and 45°C (32°F - 113°F) for charging. Avoid using the battery in extreme temperatures.
- Space: Maintain sufficient clearance around the battery as specified in the manual to ensure proper heat dissipation and access for wiring.
- Wall Strength: Ensure the wall can securely support the weight of the battery.
These 48V batteries are designed to work with inverters rated for 48V battery banks.
Connecting communication cables (like RS485, CAN, or RS232) between the battery and a compatible inverter allows for "closed-loop" communication. This enables the inverter to receive real-time data from the Battery Management System (BMS) for more precise charging and optimal performance.Yes. Our rack batteries support CAN/RS232/RS485 communication, allowing them to talk to compatible inverters (e.g., Victron, Growatt, Luxpower, Deye, Sofar, etc.).
- Avoid Extreme Temperatures: High heat accelerates degradation, and charging at temperatures below 0°C (32°F) can cause permanent damage unless the battery has a built-in self-heating function .
- Use a Compatible Charger: Always use a charger or inverter with charging profiles specifically designed for LiFePO4 batteries.
- Optimal Storage: If storing the battery for a long period, charge it to 40%-60% state of charge and keep it in a cool, dry place. Check and recharge it every 3-6 months.
- Regular Use: Periodic full charge/discharge cycles can help the BMS calibrate the state of charge reading for better accuracy.
Most wall-mounted batteries support parallel connection to increase total capacity (e.g., from 5kWh to 15kWh). When paralleling, always use batteries of the same brand, model, and age. Use cables of the same length and gauge for each battery to ensure balanced charging/discharging. Adhere to the manufacturer's limit on the maximum number of parallel units.
