Consumer
14.8V 8.8Ah NMC Pack
RVB-STX-XX-14009-X (flat), RVB-STX-XX-14009-Y (stepped)
A compact 14.8V pack for consumer robots. It uses 18650 cells in a 4S4P layout, with an XT60 connector. It comes in two shapes, flat and stepped, with the same cells and protection board. The flat shape adds a 5-LED charge gauge.
- Nominal voltage
- 14.8 V
- Nominal capacity
- 8.8 Ah
- Nominal energy
- 130 Wh
- Continuous discharge
- 5 A
- BMS / comms
- Protection board only
Typical applications
- Service and hospitality robots
- Cleaning robots
- Desktop and lab automation
- Compact indoor platforms
Full specifications
Nominal values at 25°C unless noted.
Electrical Parameters
- Cell Configuration
- 4S4P18650 cylindrical cells, 3.7 V nominal
- Cell Chemistry
- NMC (Li-ion)
- Nominal Voltage
- 14.8 V
- Nominal Capacity
- 8.8 AhMinimum, 0.2C discharge
- Nominal Energy
- 130 Wh
- Charge Cut-off Voltage
- 16.8 V
- Discharge Cut-off Voltage
- 10.0 V
- Cycle Life
- ≥ 500 cycles0.2C/0.2C, to 80% of rated capacity
- Internal Resistance
- ≤ 200 mΩAC, 1 kHz, new pack at 50% charge
Operating Conditions
- Max Continuous Discharge Current
- 5 A (0.57C)
- Max Continuous Charge Current
- 4.4 A (0.5C)
- Standard Charge Method
- CC/CV1.76 A / 16.8 V
- Discharge Temperature
- −20 to 60 °C (−4 to 140 °F)
- Charge Temperature
- 0 to 45 °C (32 to 113 °F)
- Capacity at Low Temperature
- ≥ 80% at 0 °C (32 °F)≥ 70% at −10 °C (14 °F); ≥ 60% at −20 °C (−4 °F)
- Long-term Storage
- At about 50% chargePast 90 days, charge and discharge fully once every 90 days
- Self-discharge
- ≤ 6% per monthAt 50% charge
Dimensions & Weight
- Flat Shape
- 150 × 75 × 37 mmL × W × H, ± 2 mm
- Stepped Shape
- 113 × 113 × 37 mmOverall L × W × H, ± 2 mm
- Weight
- About 760 g (1.7 lb)Either shape
- IP Rating
- IP20
- Housing Material
- Black PVC shrink wrapOther colors on request
Protections & Connections
- BMS / Communication Interface
- Protection board (PCM)No communication; draws ≤ 50 µA
- Protection Functions
- Over/under-voltage, over-current, short circuitPer cell 4.20 V / 2.50 V; over-current at 12 ± 3 A
- SOC Display
- 5-LED SOC gaugeFlat shape only
- Terminals
- XT60 on 10 cm lead18 AWG; one lead for charge and discharge
Documentation
- Datasheet
- Available on request