Lithium batteries have protective plates to prevent overdischarge and overcharge. They can be connected in parallel with lead acid batteries. However, the voltages should be as consistent as possible when connected in parallel. make sure there is no problem with the lithium battery protection plate. ?
When a 4V lead acid battery is fully charged, it will have a voltage of 4.8V, which is too high for lithium batteries. It rests on a protective plate to prevent overloading. 4.25V. There are also some without protection plate. Charge at 4.5V. High voltage lithium batteries are not safe and can easily damage the battery.
Detailed information:
1. Compared with lead-acid batteries and lithium batteries, the volume and weight of lead-acid batteries are much larger for thee same amount of electricity.
2. The assembly cost of auxiliary materials and external circuit systems of lead-acid batteries is extremely low, so the use cost is cheaper than that of lithium batteries.
3. The lifespan of lithium batteries is 1.5 to 2 times longer than that of lead-acid batteries. The lifespan is usually around 4 years, while lead acid batteries only last 2 years.
4. Lithium batteries are expensive and have no recycling value, while lead-acid batteries are relatively cheap and can be repaired to extend their life.