11.1 V Lithium-ion Battery Pack
Explore 11.1V Lithium-ion Battery Packs, engineered with 3-series cell configurations for enhanced voltage and reliable output. Ideal for portable electronics, industrial instruments, medical devices, and security systems, these battery packs combine high energy density with stable performance. Designed for efficiency and longevity, iRay energy offers robust solutions tailored for your specific power needs.
FAQs
Why is the full charge voltage of an 11.1 V battery pack 12.6 V?
The battery pack is composed of three 3.7 V nominal lithium-ion cells connected in series. When fully charged, each cell reaches 4.2 V, so the total voltage is 4.2 V × 3 = 12.6 V, while the nominal voltage is 11.1 V.
What is the typical capacity range of an 11.1 V battery pack?
The capacity can range from a few hundred mAh to tens of thousands of mAh. Typical portable devices use packs between 2000mAh and 10000mAh, while industrial equipment or robots may require large-capacity packs above 20000mAh.
What discharge current can an 11.1 V battery pack support?
Standard battery packs support 1C–3C discharge rates, which is about 2A–30A. Specially designed high-rate cells can reach 10C–20C, suitable for drones, power models, and power tools that require high output power.
Can an 11.1 V battery pack directly replace a lead-acid battery?
In some cases, it can replace a 12 V lead-acid battery, offering lighter weight and longer lifespan. However, the output voltage ranges differ (lead-acid is about 10.5–13.5 V, while lithium-ion is 9–12.6 V), so compatibility must be checked before replacement.
What is the charging voltage and method for an 11.1 V battery pack?
A 12.6 V constant current/constant voltage (CC/CV) charger should be used, and ordinary USB or 5 V adapters should be avoided. Charging at 0.5C current is recommended to extend battery life.
What are the transportation requirements for an 11.1 V battery pack?
According to the UN38.3 standard, the battery pack must pass safety tests such as vibration, impact, thermal shock, and short circuit before shipping, along with MSDS and transportation certification. Packs exceeding 100Wh must be transported as dangerous goods.
Can an 11.1 V battery pack be equipped with a smart management system?
Yes. It can be equipped with a smart BMS featuring Bluetooth, CAN bus, or RS485 interfaces for remote monitoring of battery voltage, temperature, and remaining capacity.
