Balancell P26 10.7kWh
The Balancell Residential and Small Business
battery is an intelligent and powerful 52V energy
storage system. The battery is available in a range
of capacities, from 10.7kWh to 28.8kWh and is
easy to install for use as a backup during power
outages or with solar – enabling you to quickly
realise the benefits of reliable
and clean energy.
| 5kva battery back up combo | 10kva battery back up combo |
 |  |
| Battery Specifications and Accountability | |
|---|---|
| Nominal Energy | 10.7kWh | Voltage | 52V | Nominal Amp Hours | 206Ah | Model Number | P26 | |
| Real Amp hour Capacity | This is viewable and measurable in the battery history for every discharge throughout lifetime. |
| Cell Cycle life | 3500 cycles at 100% DOD until 80% nominal capacity |
| History and Data logging | All data is recorded for every minute up to 30 years internally (and sent to gateway if online). |
| Energy Output Logging | The Total Energy Output in kWh, or total lifetime operating hours are all recorded, and visible online |
| Guarantee | Energy output – 30 000 kWh | Calendar time – 10 yrs | | |
| Guarantee – Cycles | Unlimited cycles up either Total Energy Output or Calendar time, which ever comes first |
| Recycling – End of life | EnviroServe – Our partner recycling company |
| Discharge Limits – (Voltage & Current) | Battery | Protection | Notes |
|---|---|---|---|
| Continuous Discharge current | 200A | 1C continuous | |
| Surge Discharge Current – 30 seconds | 600A | 3C transient. Typically repeated for every lift or peak load. | |
| Electronic Current trip limit – analogue | 550A | If the electronic current limit option is enabled – Note 1* | |
| Electronic trip Retry time – analogue | – | Time taken after current trip to retry connection | |
| Pre-Charge current limit – Note 1* | 550A | Automatically provided if electronic current limit is enabled | |
| Electronic Overload – Digital | Optional with either, I²t , max current, or Custom profiles | ||
| Internal Battery Fuse | 400A | I²t = 610 000 A | |
| Minimum battery voltage | 47.2V | Battery will cutout here, regardless of indicated SOC | |
| ABSOLUTE Minimum Battery Voltage | 43.4V | Internal electronics Disabled! Please see battery protection. | |
| Note 1*. Electronic current limit is optional and adjustable between 500-1000A. It will act as a automatic pre-charge for connection to inverters. For motive applications, in particular old lead machines, pre-charge or current limit prevents startup, and not desirable. | |||
| Charge Limits – (and charger settings) | ||
|---|---|---|
| Maximum Continuous Charging Current | 150A | Preferred range is 100A to 150A, set for constant current CC. |
| End of Charge voltage | 56V | 55.6V to 56.0V max set as endpoint CV voltage |
| Balancing charge voltage or current | 56.2V | 56.0V-56.3V OR charge at constant current (CC) of 400mA |
| Charger voltage range | 48V | Charger voltage must be within normal 48V limits. |
| Battery maximum voltage self cut out | 56.4V | Battery will cutout, preventing further charging, NOTE 3*. |
| Peak transient charger voltage | 100V | *Peak transient voltage after battery self disconnects |
| Charger Lead Inductive Energy | 75J | NOTE 4*. However, Typical 2m length lead installations are of no concern. |
NOTE 3*. If battery self cuts out from over voltage it will still be available for discharge through reverse diode. NOTE 4*. This is the maximum charger lead Inductive energy battery cutout can absorb ( 1/2 I²L < 75J ). | ||
| Protection | Individual Cell | Battery Level |
|---|---|---|
| Over Voltage | Digital | Analogue and Secondary Digital cutout |
| Over Discharge | Digital | Digital SOC and Digital under voltage |
| Deep Over Discharge | Analogue cut out of internal electronics to prevent further discharge. NOTE 1*. | |
| Over temperature | Digital | Digital and Secondary Analogue |
| Under temperature | Digital | Digital |
| Charge rate | Digital | Digital |
| Short circuit 1* | Optional* – Analogue electronic protection, 40ns response time, with automatic hiccup retry. | |
| Short circuit 2 | Fuse is always installed on all batteries. | |
| NOTE 1*. When the internal electronics are disabled, the battery enters a dormant state. In this state the battery will be inactive, not connected and not available for normal recharge or use. It can be recharged but it MUST be recharged with a constant current that must not exceed 500mA (450mA preferred) and voltage less than 65V (e.g. Balancell hockey PUK charger). If left for more than 6 months in this dormant state, then it should NOT be recharged and battery needs to be returned for a service and cell checkup. | ||
| Mechanical Design |
|---|
| | Length – 946 mm | Width – 186 mm | Height – 302 mm | Mass – 78 kg |
| | Specific (Gravimetric) Energy Density – 135 Wh/kg | Volumetric Energy Density – 213 Wh/l | |
| | Cell insulation – Standard with Additional PET 300 micron cover added to all cells for safety and vibration tolerance. |
| | Cell compression – ~ 3000N | G-shock tolerance – > 5 times IEC 61485 | Environmental – IP61 | |
| | Interlinks, cell to cell , cell to terminal – Flexible laminated tin plated copper | |
| Communication Options | ||
|---|---|---|
| GSM | Global sim with lifetime connectivity (15yrs), Standard on Industrial Motive Batteries | (2G, 3G or NB-IoT) |
| Serial | RS232 standard, (default connection to SOC display), RS485 converter optional. | Isolated to 1000V |
| CANbus | CANOpen standard, 5V@200mA available, OEM comms on request, MODBUS optional. | Isolated to 2500V |
| Wifi | Standard | |
| Certification and Standards | ||
|---|---|---|
| Cell Certifications | GB | Certified to – GB31484, GB31485, GB31486, UL1973, MSDS UN38.3 |
| Cell Manufacturing | ISO | Certified to – ISO9001, ISO14001, TS16949 |
| Battery Manufacturing | ISO | In process – ISO9001 certification |
| Battery Electromagnetic Compatibility | CE | Certified to – EN 301 489-1: V2.2.3, EN 301 489-52: V1.1.0, EN / IEC 61326-1 |
| Battery Standards | IEC | Designed to meet – IEC 62485-6, IEC 63056, IEC 61619, IEC 62660-2 |
| Battery Standards | UL | Designed to meet – UL 2580 |
| Ancillaries | |
|---|---|
| OLED SoC% Display | 0-100%, Error msgs, Power & Charging LEDs. Configurable Buzzer at low SOC |
| Fast Charge Safety Disconnect Plug | Fast charging point safety forklift disconnect to prevent driving away with charger connected |
| 3P charger | 9kW – 26V, 39V, 52V |
| 1P charger | 3kW – 26V, 39V, 52V |
| Hockey PUK charger | 400mA CC, For float charging, balancing, and recovery from a deep discharge dormant state |