AmpBird

DIY Battery Kit | DIY Battery Kit

51.2V 314Ah DIY LiFePO4 Battery Kit | 16kWh Solar Storage System

$570.00 USD

Sale Sold out

Shipping calculated at checkout.

Shipping From China( 40-60 Days) EU( 7-10 Days)

Build your own 51.2V 314Ah LiFePO4 energy storage system with AmpBird DIY Battery Kit.

Designed for solar storage, off-grid applications and backup power, this kit provides a professional battery enclosure, smart BMS and essential components while allowing you to choose your preferred LiFePO4 cells.

Compatible with 16pcs 3.2V 314Ah LiFePO4 cells to build approximately 16kWh of energy storage.

The kit also supports compatible most main brands 280Ah-334Ah prismatic LiFePO4 cells in the market, such as EVE, CATL, CALB, REPT, Hithium, Higee...

Everything You Need for Your DIY Battery Build

Battery Enclosure

Professional metal enclosure designed for large capacity LiFePO4 cells.

Smart BMS

Battery monitoring and protection with CAN/RS485 communication.

Display Screen

Real-time monitoring of battery status.

Busbars & Connectors

Complete connection components for assembly.

Protection Components

Breaker and safety components included.

Assembly Accessories

Hardware required for installation.

DIY Flexibility Without Starting From Zero

DIY Kit	Traditional DIY
Pre-designed enclosure	Need custom design
Matched components	Source every part
Assembly guide	Research yourself

DIY Kit vs Complete Battery System

	DIY Kit	Complete System
Flexibility	⭐⭐⭐⭐⭐	⭐⭐⭐
Assembly	Required	Ready to use
Custom cells	Yes	No
Installation time	Longer	Faster

View full details

10-Year Warranty On cells and BMS

Free Shipping Orders over $499

30-Day Returns No questions asked

Complete Kit in One Box

Cells, BMS, busbars, terminal hardware, and wiring -- everything you need to build a working battery pack.

Grade A Matched Cells

Cells are capacity-tested and voltage-matched as a set, so your pack balances faster and lasts longer.

Pre-Programmed BMS

The included BMS ships configured for your cell count and chemistry. No laptop, no parameter guesswork.

Save vs Pre-Built

Building your own pack costs significantly less per kWh than a finished battery -- with the same Grade A cells.

Custom Capacity

Choose your cell count and configuration to build exactly the voltage and kWh your system needs.

Full Build Documentation

Step-by-step assembly guide, wiring diagrams, and torque specs included. Support if you get stuck.

Battery Enclosure Rolling tool-free case with LCD touchscreen and locking casters

Smart BMS JK 2A active balance with CAN / RS485 / Bluetooth monitoring

Busbars & Connectors Nickel-plated copper busbars, terminal screws, and insulation caps

DC Breaker 125A–250A DC circuit breaker with arc extinguishing

LCD Display Touchscreen showing SOC, voltage, current, temperature in real time

Cables & Wiring Pre-cut silicone cables, balance leads, and communication harnesses

Mounting Accessories Brackets, standoffs, cable glands, zip ties, and assembly hardware

Assembly Manual Illustrated PDF + video guide with wiring diagram and BMS setup walkthrough

⚡ Cells sold separately — choose your capacity and brand

Sourcing

Source enclosure, BMS, busbars, breaker, screen, cables from multiple suppliers — weeks of research

One box. Every component matched and tested together before shipping.

Wiring

Cut, crimp, and route every cable. Hope you bought the right gauge. Hope you didn't forget the balance leads.

Pre-cut silicone cables with labeled connectors. Plug into labeled terminals. No crimping tool needed.

Compatibility

Will this BMS talk to my inverter? Does the breaker rating match my cells? Cross fingers, search forums.

Pre-tested compatibility with Victron, Growatt, Deye, Luxpower, EG4, and more. CAN/RS485 protocol confirmed.

Capacity

Hope you calculated correctly. Re-buy if you got the voltage wrong. Enclosure might not fit your cells.

Choose 280–330Ah cells. Same enclosure. Same BMS. Build 12V / 24V / 48V — upgrade voltage later without re-buying.

Support

Reddit threads. YouTube videos from three years ago. Hope the BMS manual was translated by a human.

Illustrated assembly manual. Video walkthrough. WhatsApp support from engineers who built the kit.

280Ah

896 Wh per cell 16S pack: 14.3 kWh

300Ah

960 Wh per cell 16S pack: 15.4 kWh

314Ah

1,005 Wh per cell 16S pack: 16.1 kWh

330Ah

1,056 Wh per cell 16S pack: 16.9 kWh

Compatible with all major Tier-1 cell manufacturers. Enclosure fits standard 17472 format prismatic cells.

1

Prepare Cells

Top-balance your cells to within 0.01V. Arrange them in the enclosure with separator sheets between each cell. Torque M6 terminals to 5 N·m. Double-check polarity orientation before proceeding — getting this wrong is the easiest mistake to make and the hardest to undo.

Pro tip: Take a photo of your cell arrangement with serial numbers visible. Comes in handy for warranty later.

2

Install Components

Mount the BMS onto the pre-drilled bracket. Install the DC breaker into the front panel cutout. Connect the LCD display ribbon cable to the BMS communication port. Secure the busbars across cell terminals in the correct series/parallel pattern shown in the wiring diagram.

All mounting holes are pre-drilled. All brackets are pre-installed. You need one tool: a 5mm hex driver.

3

Connect BMS

Attach balance leads in order from B0 (cell 1 negative) through B16 (cell 16 positive). The wiring harness is pre-labeled. Plug the BMS temperature sensors onto the designated cell surfaces. Connect main negative and positive leads through the DC breaker. Before closing the circuit, verify all balance lead voltages with a multimeter.

Connect balance leads B0 first, then B1 through B16 in order. One swapped lead = potential BMS damage. The manual has a checklist.

4

Configure Inverter

Power on the BMS and verify all cell voltages on the LCD screen. Set BMS parameters via the JK app: capacity, cell count, voltage limits. Connect the CAN/RS485 cable to your inverter. Select the matching protocol from the BMS menu. Perform a test charge-discharge cycle at low current to confirm communication and cutoff behavior.

Inverter protocol list included in the manual: Victron, Growatt, Deye, Luxpower, EG4, SMA, and more.

Technical Specifications

Kit components and electrical specs

Translation missing: en.products.product.specification	Translation missing: en.products.product.detail

📥 Translation missing: en.products.product.download_datasheet

Item added to your cart

51.2V 314Ah DIY LiFePO4 Battery Kit | 16kWh Solar Storage System