KOOR Active Stack Battery
KOOR-51.2-314AH-16KWH · 51.2 V · 314 Ah · 16 kWh
A 16 kWh tower you carry in by the section. Four stacked sections, a base and a touch-screen control head — no lifting a 300 lb cabinet.
- 16 kWh51.2 V, 314 Ah per tower
- 200 Acontinuous charge and discharge
- Up to 15 towerson one communication chain
- Auto prechargesoft-starts the inverter itself
- 4.3-in touch screenvoltage, current, charge, temperature
- 10 yearswarranty from Fantastech
What it is
The Active Stack is the same 16 kWh LiFePO4 pack as the 16K Pro, split into sections that stack on a base under a control head. Each section is a two-man carry through a doorway, which matters in a basement or a loft.
Every tower has a built-in precharge circuit that soft-starts the inverter on its own — no precharge button to remember. Active balancing moves charge between cells, and heater pads protect the pack from sub-zero charging.
Up to 15 towers run on one communication chain with automatic addressing. Series connection is not allowed; towers always run in parallel.
Specifications
Read off the manual on file. Model columns run in the order listed above.
| Electrical | |
|---|---|
| Chemistry | lithium iron phosphate (LiFePO4) |
| Nominal voltage | 51.2 V |
| Capacity | 314 Ah — 16.08 kWh per tower |
| Charge voltage | 56.0 – 58.4 V |
| Discharge cut-off | 43.2 V |
| Max continuous charge / discharge | 200 A / 200 A |
| Standard charge | 62.8 A (0.2 C), CC/CV, cut-off 6.28 A |
| Parallel expansion | up to 15 towers on one comm chain, auto-address (RS485 / CAN cascade). Series not allowed. |
| Management | |
| BMS | monitors and protects voltage, current and temperature on every string |
| Cell balancing | active |
| Precharge | automatic — built in, no button to press |
| Protections | over/under-voltage, over-current, short circuit, over/under-temperature, cell imbalance |
| Communication | dual RS485, CAN, RS232 |
| Display | 4.3-in TFT touch screen in the control head; RUN / ALM / capacity LEDs |
| Temperature | |
| Heating | internal heater pads on the BMS heating circuit — automatic sub-zero charge protection |
| Charging | 0 °C to 45 °C (32 °F to 113 °F) |
| Discharging | −20 °C to 60 °C (−4 °F to 140 °F) |
| Storage | −20 °C to 45 °C (−4 °F to 113 °F) |
| Physical | |
| Footprint (W × D) | 720 × 526 mm (28.3 × 20.7 in) |
| Height | about 1,176 mm (46.3 in) — base, four sections and control head |
| Weight | 130 kg ± 5 kg (287 lb ± 11 lb) per tower |
| Enclosure | steel, floor-standing modular stack; black lid and base, white sections |
| Location | indoor |
| Certification and warranty | |
| Safety listing | not UL listed — confirm code and AHJ requirements before specifying on a permitted job |
| Transport | UN38.3 tested, MSDS on file per shipment |
| Warranty | 10 years — see the warranty page |
In the box
- Structural base
- Four battery sections
- Control head with 4.3-in touch screen
- Section-to-section links
- Communication cable
- Quick-start guide
Downloads
Questions we get
How many towers can I run together?
Up to 15 on one communication chain. The master (the one tower cabled to the inverter) is address 0, all four switches OFF; the rest take 1, 2, 3 and up, no repeats. On a job with more than one inverter, give each inverter its own equal bank of towers.
Can I stack towers in series for a higher voltage?
No. Series connection is prohibited. Towers run in parallel only, on a 48 V system.
What is the precharge for?
An inverter's capacitors pull a big inrush when they first see the battery. The Active Stack soft-starts that connection itself, so there is no precharge button to press and no arc on the terminals.
Does every tower need a base and a control head?
Yes — one base and one control head per tower, whatever the section count.
Which inverters does it pair with?
Closed-loop with the KOOR All-in-One and 12K, and with major brands over CAN or RS485. We publish plug-by-plug wiring guides — ask for yours.
Is it UL listed?
No. Tell your inspector and insurer before specifying it on a permitted job.
What is the warranty?
10 years from Fantastech Energy Solution LLC.
