In a world where energy independence is more valuable than ever, building your own solar battery backup system isn’t just possible — it’s smart, affordable, and surprisingly easy. Thanks to kits like the one offered by Basengreen, homeowners and DIYers can assemble a high-capacity, professional-grade battery system at a fraction of the retail cost.
In this guide, we’ll explore how Will Prowse, a well-known figure in the DIY solar community, built a 15.2kWh 48V LiFePO₄ battery using Basengreen’s kit — and why this might be the smartest energy investment you can make this year.
⚡ Why Build a DIY Battery with Basengreen?
Most DIY battery builds have been dismissed in the past for being too technical or not cost-effective. But Basengreen changes the game by offering:
- Grade A EVE 304Ah LiFePOâ‚„ cells ($106/each)
- A robust, pre-designed battery case ($550 when in stock)
- Premium busbars, wiring, spacers, and insulation
- BMS integration and inverter compatibility
đź’ˇ Total cost per watt-hour? Just 14.5 cents.
For less than $2,250, you get a battery that delivers factory-level performance with DIY-level pricing.
🛠️ How the Battery Was Built – Step by Step
Will Prowse walks through the process in under two hours, showing that you don’t need to be an engineer to build a robust system. Key steps include:
🔹 Assembly:
- Stack and align the 8 LiFePOâ‚„ cells using included spacers
- Verify voltage levels (all within 1mV!)
- Attach compression plates for cell stability
- Wire up the BMS with precise torque (6Nm)
- Add temperature sensors and secure with Kapton tape & hot glue
🔹 Configuration:
- Connect the battery to a Victron inverter via USB-RS485
- Load BMS software and set capacity (304Ah)
- Switch to Victron CAN bus protocol for seamless inverter communication
🔹 Integration:
- Connect to Will’s existing home solar backup system
- Replace the old battery pack without disrupting power to critical appliances
- Charge and discharge under real-life load to test performance
🔍 Real-Life Performance: What Can It Handle?
- Powered an entire off-grid backup system for 32 hours straight with no solar input
- Delivered 94% usable capacity (14.6kWh out of 15.6kWh total)
- Started a 4-ton heat pump using a soft starter
- Recharged to 100% in one sunny day using a 3.2kW solar array
- Maintained 60%+ capacity during cloudy/rainy conditions over a week
🎯 Use Cases:
- Whole-home solar backup
- RV or campervan energy systems
- Emergency preparedness for grid outages
- Off-grid cabins or tiny homes
âś… Pros and Considerations
| Strengths | Considerations |
|---|---|
| Massive savings vs. prebuilt batteries | Software UI isn’t beginner-friendly |
| Fast assembly (< 2 hrs) | External breaker required |
| Excellent performance under load | Needs basic electrical knowledge |
| High-quality components (busbars, wiring) | Not ideal for non-DIYers |
🎯 Should You Build One?
If you’re comfortable using basic tools and understand battery polarity, the Basengreen LiFePOâ‚„ Kit is one of the most efficient and cost-effective energy solutions you can implement yourself.
Rather than paying $4,000+ for a prebuilt battery system, you could have:
- Full control over every connection
- Industrial-grade quality
- DIY-level price
- Power security for your entire home
đź”— Where to Get It
You can learn more and order directly from:
👉 https://www.basengreen.com
🧠Final Thoughts
This isn’t just about saving money — it’s about building energy resilience. Whether you’re preparing for outages, powering an RV, or just want to get off-grid, this battery kit gives you the freedom and power to do it right.
And best of all?
You don’t need to be a professional — just someone who’s willing to follow a guide and plug things in carefully.
Want to see the full build?
đź“ş Watch Will Prowse’s full video: YouTube – SAVE Thousands – Build your own home solar battery backup
âś… Meta Description (SEO-optimized):
Build your own 15.2kWh LiFePOâ‚„ solar battery with Basengreen’s DIY kit. Affordable, powerful, and easy to assemble. Save big and stay powered!
