Lithium-ion battery falls mainly into three categories: power, consumer electronics and energy storage (ESS)
according to the applications.Lithium batteries for consumer
electronics, including mobile phones, laptops, digital cameras and other
3C products,
accounted for 62% of the global total lithium battery output in 2015.
However, with the increasing global demand for new energy vehicles,
lithium battery in consumer electronics sale declines year by year. It
is estimated that the proportion of power lithium battery to the total
applications of lithium batteries in China will increase to 70% in 2020
from 34% in 2015 , and became the mainstream of lithium battery
applications.
Follows
are the Lithium Battery Cells we use to make battery packs they are
A123 18650 26650 battery cells and some other powerful imported cells
like sansung, LG, sanyo and panasonic

The
global market scale is expected to reach 450 billion in 2020. Benefited
from the incentive of favorable new energy vehicles policy, China's
annual output of lithium-ion batteries rose up to 7.8 billion in 2016,
with an increase of 40% compared with that of 2015. Global lithium-ion
market has steadily increased in recent years,reaching 215.8 billion RMB
in 2016, with a compound annual growth rate of 21% from 2011 to 2016.
The global lithium-ion battery market is expected to reach 450 billion
RMB in 2020, of which China's lithium-ion battery market share is
expected to reach 300 billion RMB.
Besides
the explosive development of new energy vehicles, China witness
exponential increase of lithium bicycle production output.Lithium
battery powered electric bike production reached to 3.5 million in 2015,
with an increase of annual growth of 32% against 2014 and a compound
annual growth rate of 70% from 2010 to 2015. The rapid rising demand of
electric vehicles lead to the increasing demand of lithium bicycle
batteries, making it the main driving force of lithium-ion battery
growth.
kokpower
has 10 years’ experience in developing batteries for electric
bicycles,supplying all types of lithium electric bicycles batteries.
Innovation roots in our company culture. We’ve developed electric bicycles batteries Escooter battery
with Bluetooth function, meeting customers’ need to monitor the bike
battery state -heart of electric bicycles-anytime anywhere. Choosing KOK
means choosing leading trend of lithium ebike batteries!


Most people don’t take bilge pumps
seriously unless they’ve had a boat flooded or sunk already. That’s a
mistake. Sinking at the dock is one thing, but sinking 20 miles offshore
is bad news. All it takes is one faulty exhaust hose to fill a hull
full of water. The size of your bilge pump needs to work with the size
of your boat. Any boat that is over 16 feet in length will want to
invest into two pumps instead of just one.
How Many Compartments Are There?
1.
In general, if you have a compartment on your boat that doesn’t allow
water to flow freely, then it needs to have one of the best boat bilge pumps
that are available right now. This means you’ll need to look at every
compartment on your boat to determine if bulkheads are in place. If they
are, then you’ll need a pump for each compartment if you’re following
best practices.
Outboards Have Special Needs
2.
The weight of the engine on an outboard motor or a stern drive, for
that matter affects the flow of water in the boat. Instead of the lowest
point being in the center of the boat, the lowest point is actually in
the aft section. If you have a self-bailing cockpit, it won’t take much
water in the bilge to sink the boat. Make sure the pump isn’t installed
where you can’t reach it in case you may need to fix it.
Capacity Matters
3.
Only small boats can get away with an 800gph pump. The idea that any
pump is going to actually expel the amount of water in gallons per hour
that it claims to be able to do is an unreasonably expectation. Any boat
over 16 feet should have a 1500gph bilge pump
at minimum. You can use this guide to help you choose how big your pump
should be. Most bilge pumping requires vertical motion, so a 1500gph bilge pump would get rid of 750 gallons per hour. Then you’ll need to purchase two of them in most cases to truly be safe.
Redundancy Is Important
4. Installing the best boat bilge pump
correctly is just as important as having the right pump on hand. If
your primary pump is installed at the low point of the bilge, then
consider installing the pump about 10 inches higher above the first pump
level so that you’ll have a backup system that can kick-in when there
is a need for it. This will also help to keep some of the debris that
forms over time in the bilge from fouling up your redundant systems.
Open or Closed Switch?
5.
Although closed float switches help to protect them from debris, it
makes it impossible to test the switch. It’s also pretty common for
sludge to foul up the switch and clog up the entire process. It becomes a
lot like the hair that gets bunched up in a bathtub drain. It’ll still
work, but not as well, and that could put your boat into trouble.
The best boat bilge pump
will give you enough power to free your bilge of the extra water that
could flood or sink your boat faster than you might realize. Don’t
ignore this. A flooded bilge only needs to happen once to put your life
at risk.