Many Consumer Solar Lights Use Lithium Batteries Without Bms What Are The Risks
- The charging circuitry of cheap solar lights may not have a current limit, and when the solar panel produces more voltage than the battery requires, the excess current can heat the battery, accelerate degradation and create a fire risk. As professional purchasing consultants, we recommend choosing products with current limiting capabilities.
- Solutions:
- 1. Choose solar light products with current limiting circuits
- 2. Avoid buying too cheap products to ensure the safety of the charging circuit
- 3. Regularly check the status of the charging circuit and detect abnormalities in time
- 4. Do not charge under direct sunlight for a long time to reduce the risk of overheating.
- Swelling of lithium batteries in solar lights is a common failure mode that can cause the waterproof housing to crack or eject components. As professional purchasing consultants, we recommend that when bloating is discovered, it should be stopped immediately and handled properly.
- Solutions:
- 1. Immediately stop using the solar lamp if the battery is found to be swollen.
- 2. Properly dispose of swollen batteries to designated battery recycling facilities
- 3. Choose solar light products with reliable quality to reduce the risk of battery expansion
- 4. Avoid using solar lights in high temperature environments to reduce the possibility of battery expansion.
- Many solar light casings lack effective thermal management. The batteries are packaged in sealed plastic boxes with no heat dissipation capability, which may cause the risk of thermal runaway in hot weather. As a professional purchasing consultant, we recommend choosing products with heat dissipation design.
- Solutions:
- 1. Choose solar light products with heat dissipation design
- 2. Avoid using solar lights in high temperature environments for long periods of time
- 3. Make sure the solar lights are installed in a well-ventilated location to facilitate heat dissipation
- 4. Check the battery temperature regularly to detect overheating in time.
- Lithium batteries damaged by overcharging may spontaneously ignite, especially when stored in an enclosed space. As professional purchasing consultants, we recommend avoiding charging in enclosed spaces and choosing products with overcharge protection.
- Solutions:
- 1. Avoid charging and storing solar lights in enclosed spaces
- 2. Choose solar light products with overcharge protection function
- 3. Check battery status regularly and detect signs of overcharging promptly.
- 4. Follow the charging instructions in the product manual and do not overcharge.
- The lithium battery in the solar lamp does not have a BMS, which means the lack of battery balancing function. In a multi-cell configuration, one battery may be overcharged and the other undercharged, causing malfunction. As a professional purchasing consultant, we recommend choosing BMS products with balancing functions.
- Solutions:
- 1. Choose BMS solar light products with balancing function
- 2. Avoid buying products that use multiple batteries but do not have a BMS
- 3. Regularly check the status of the battery pack to ensure the consistency of each battery
- 4. Choose a well-known brand to ensure the quality of the battery management system.
- Fires caused by lithium solar cells can be difficult to put out because the batteries themselves contain oxidants and standard fire extinguishers may be ineffective. As professional purchasing consultants, we recommend understanding the correct fire fighting methods and taking preventive measures.
- Solutions:
- 1. Equipped with a Class D fire extinguisher or sand to extinguish lithium battery fires
- 2. Understand the correct method of handling lithium battery fires
- 3. Take preventive measures and choose solar light products with reliable quality
- 4. Avoid using and storing solar lights near flammable items.
- The low cost of consumer solar lights may mean that manufacturers use lower quality lithium batteries, which may be from batches that have not passed quality control for other applications. As professional purchasing consultants, we recommend choosing products with reliable quality or considering replacing branded batteries.
- Solutions:
- 1. Choose solar light products from well-known brands to ensure battery quality
- 2. Consider replacing it with a branded battery after purchase to improve safety and service life.
- 3. Check the battery specifications and quality certification of the product
- 4. Don’t just pursue low prices, consider the safety and reliability of the product comprehensively.
- Proper lithium battery safety requires features such as BMS, thermal management, overcharge protection and physical protection. Many consumer solar lights may lack these features. As professional purchasing consultants, we recommend choosing high-end products or installing the necessary safety features yourself.
- Solutions:
- 1. Choose high-end solar light products to ensure they have the necessary safety functions
- 2. Check product specifications to confirm the existence of safety features
- 3. If you need to install it yourself, consult professionals for advice.
- 4. Regularly check the safety status of solar lights and discover and solve problems in a timely manner.
- If the lithium battery in a solar light shows signs of swelling, heat, or damage, it should be taken out of service immediately and discarded at an appropriate battery recycling facility. As professional purchasing consultants, we recommend safe handling methods to avoid potential dangers.
- Solutions:
- 1. Immediately stop using the solar light when the lithium battery is found to be swollen, heated or damaged.
- 2. Do not attempt to disassemble or repair a damaged battery
- 3. Pack the damaged battery properly to avoid short circuit
- 4. Send the battery to a designated battery recycling facility and do not throw it away casually.
Should you have any questions, please do not hesitate to contact us.