Battery Selection & Sizing
Determine the required system voltage, Ah capacity, usable energy, continuous discharge current and peak-current capability from the real load, runtime target and operating conditions.
Practical LiFePO4 battery knowledge for charging, Smart BMS protection, CAN / RS485 communication, series and parallel systems, troubleshooting, testing and battery-system integration.
Use this technical knowledge center to understand how the battery, BMS, charger, inverter, motor controller, wiring, protection devices and communication system work together in RV, marine, golf cart, industrial and OEM applications.
Reliable lithium battery performance depends on more than nominal voltage and Ah capacity. BMS current limits, charger settings, inverter or motor-controller demand, cable resistance, temperature, communication protocols and system configuration can all affect battery performance, protection behavior and service life.
Battery → BMS → Charger / Inverter / Controller → Wiring & Protection → Application
Start with the part of the battery system you are selecting, integrating, validating or troubleshooting. Each topic below links to a dedicated guide or technical resource.
Determine the required system voltage, Ah capacity, usable energy, continuous discharge current and peak-current capability from the real load, runtime target and operating conditions.
Review charge voltage, charge current, lithium charging profiles, shore power, alternator charging, DC-DC chargers and charger-to-BMS compatibility before connecting a LiFePO4 battery to an existing system.
RV Lithium Battery Not Charging on Shore Power →
Understand how overcurrent, low-voltage, over-voltage, temperature and cell-level protection influence LiFePO4 battery operation, shutdown behavior and system reliability.
LiFePO4 Battery Won't Wake Up →
Check communication protocol, CAN wiring, connector pinout, baud rate, termination, firmware and equipment settings when integrating a Smart BMS with an inverter, charger or host controller.
Battery matching, cable length, connection layout, resistance, current sharing, BMS calibration and cell condition all influence multi-battery systems and state-of-charge balance.
Diagnose shutdown, charging, communication, voltage sag, current-limit and compatibility problems using system measurements and operating data before replacing batteries or other components.
Use charge-discharge tests, current measurements, cell-voltage data, BMS events and communication checks to validate battery behavior before production approval, OEM integration or field deployment.
System requirements change with the application. These technical hubs focus on charging, load behavior, BMS protection, wiring, communication and integration rather than repeating basic battery selection advice.
Shore power, converters, inverters, alternators, DC-DC charging, house-battery protection and system-level integration for motorhomes and camper vans.
House banks, trolling motors, high-current loads, shore charging, marine wiring and BMS protection for boats and marine electrical systems.
36V and 48V battery systems, motor-controller current, hill climbing, regenerative braking, charger compatibility and BMS protection.
Smart BMS configuration, CAN / RS485 communication, inverter compatibility, charging, parallel batteries and system-level validation for OEM and energy applications.
These focused diagnostic guides cover common BMS protection, charging, CAN communication, SOC imbalance, motor-load and wiring problems. Each guide is designed to help identify the likely cause from system data before parts are replaced.
Check regenerative current, battery SOC, BMS charge limits and cell over-voltage behavior.
View Diagnostic Guide →Check converter output, protection devices, wiring, BMS status and charger compatibility.
View Diagnostic Guide →Check protocol, pinout, baud rate, termination, firmware and equipment configuration.
View Diagnostic Guide →Check motor current, BMS capability, voltage sag and high-current wiring.
View Diagnostic Guide →Check deep discharge, BMS sleep, low-voltage protection and charger detection.
View Diagnostic Guide →Check cable resistance, current sharing, BMS calibration, cell balance and battery matching.
View Diagnostic Guide →For OEMs, equipment manufacturers, distributors, installers and system integrators, battery selection should be reviewed together with voltage, usable capacity, continuous and peak current, charging equipment, installation space, Smart BMS protection and CAN / RS485 communication requirements.