Battery upgrade
| 2x | Stock batter | Upgrade battery |
| Model | EREMIT 606090 | HXJNLDC 7565121 |
| Chemistry | Lithium-Polymer | Li-on |
| Capacity | 14.8 Wh (4 Ah) | 30.34 Wh (8.2 Ah) |
| Nominal voltage | 3.7 V | 3.7 V |
Charging limit voltage 4.25 V 4.2 V Mass 74 g
- Connector: JST-PH 2.0mm (not included in upgraded battery)
Charging chip - MP2650
- Datasheet: MP2650GV.pdf
- 4V to 21V Operating Input Voltage (VIN) Range
- Up to 5A Configurable Input Current (IIN) Limit (Up to 45W Total Power)
- Up to 5A Configurable Charge Current (ICHARGE)
- Configurable Battery Charge Voltage Regulation (VBATT_REG) Up to 4.5V/Cell
- Up to 5V/3A USB On-The-Go (OTG)
Monitoring chip - MAX17320G20+
- Datasheet: max17320.pdf
- Battery Health + Programmable Safety/Protection
• Overvoltage (Temperature Dependent)
• Overcharge/Overdischarge/Short-Circuit Current
• Over/Undertemperature
• Undervoltage + SmartEmpty
• Battery Internal Self-Discharge Detection
• Ideal Diode Discharge During Charge Fault
• Charging Prescriptions (JEITA)
• Prequal Charge Control with CHG FET - ModelGauge m5 EZ Algorithm
• Percent, Capacity, Time-to-Empty/Full, Age
• Cycle+™ Age Forecast - Precision Measurement Without Calibration
• Current, Voltage, Power, Time, Cycles
• Die Temperature, 4 Thermistors ±1˚C - Cell Balancing with Internal FETs
- SHA-256 Authentication
- Nonvolatile Memory for Stand-Alone Operation
- History Logging, User Data (84 Bytes)