11.1V Lithium-ion Battery Pack When using lead-acid batteries, frequent maintenance and replacement is necessary. This will increase the cost for the investment in batteries. Although the investment of lithium batteries could be higher at first, you can enjoy the good return in the long term. The lithium batteries gives a longer lifespan as you can discharge them for more cycles and use with less maintenance before replacement.
We are able to discharge a lithium product much quicker than that of a lead-acid product and get the same capacity. If the lithium-ion battery pack is discharged to 80%, you can still get a good lifespan. But doing that with a lead-acid battery will damage its lifespan. Generally, a lead-acid battery can only use fifty percent of the discharge. The recharge time is quicker on a lithium product as well especially if we have a charger that`s large enough to put the capacity back. The lithium-ion battery packs have a low self-discharge rate of only 1-2% per month.
When using lead-acid batteries for power supply, regular maintenance is essential to ensure the battery performance. However, when purchasing lithium-ion batteries for power use, less maintenance is required. The lithium-ion cells is more stable with good performance. It saves a lot of time for maintenance and cost for replacement.
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It is understood that the proposal clarifies the method of measuring lumen output, output power and relative spectrum to determine the correlated color temperature. The rule also proposes a method for calculating the life of an LED bulb, defining the lifetime of the LED bulb as the length of time that the lumen is maintained to 70%, and increasing the calculation of the efficacy and color rendering index of the LED bulb.
The US Department of Energy also recently issued a supplemental notice to revise the definition of “lifetime†to better match the statutory definitions in the Energy Policy and Conservation Act of 1975. . The DOE proposes a new definition of "failure time" to support the definition of the revised "lifetime". Stakeholders can submit relevant comments, data and information by August 4. 
The Advantages of Lithium-ion Battery Pack
1.Higher energy density
The higher energy density of lithium-ion battery pack means we are going to get more power out of the same physical size cell than we could get from a lead-acid battery. So when using lithium-ion battery for electronic gear, it means more runtime but less weight.
2.Less weight
Less weight could be a big advantage for most electronic applications that need to be in a compact size and lightweight for use, including mobile applications, robots, drones, floor scrubbers, RVs. A lot of power is used for those devices, so less weight would be certainly an advantage for mobile applications.
3.Thousands VS hundreds of cycles
More cycles are an advantage by a lithium product we`re gonna get. You know the lithium batteries could provide thousands of cycles versus lead-acid batteries which only offer hundreds of cycles. It is a big difference in the cycling ability of lithium over lead-acid batteries.
4.Charge and discharge rate
5. Less Maintenance
Lithium-ion battery pack Application
US Department of Energy plans to revise LED bulb energy test procedures
From the Ningbo Entry-Exit Inspection and Quarantine Bureau, the US Department of Energy (DOE) recently proposed a new energy test procedure for light-emitting diode (LED) bulbs, and China's stakeholders should pay attention to it.