Battery differences between:
EMU-MAX with lithium batteries.
EMU-MINI with Sealed Lead Acid batteries.
The EMU-MAX has a Lithium
battery. These are the newest technology in batteries. A Lithium battery
has a lifetime of roughly 2-3 times of a Sealed Lead Acid battery. Lithium
batteries are the lightest yet, on average weighing approximately 50% less than
Sealed Lead Acid's. Lithium batteries also feature the benefit of being largely
maintenance free. Where as earlier forms of batteries need periodic attention
when not in use, Lithium batteries do not require much of this. A lithium
battery can sit for long stretches of time without any maintenance or charging.
As such, if you're only planning on using your EMU trike from time to time (perhaps you
store it at a summer home, or retire it during the winter months, a Lithium
battery would be a good option. Lithium batteries cost a little bit more than
lead acid batteries, but the cost per mile ends up being roughly the same.
Why use Lithium batteries?
Lithium is a very active material that provides a great
deal of power relative to the amount of material used in the battery. Lithium
batteries are extremely light in weight while maintaining a higher voltage and
longer service life compared to other primary chemistries such as SLA.
The EMU-MINI has Sealed
Lead Acid batteries (or SLA)
were once the standard battery type for most electric scooters and electric wheelchairs. These days, most electric scooters still use SLA
batteries, while electric bikes
(which often require human input) have opted for newer battery technologies to
keep the bike as light as possible. This is largely due to the fact that SLA
batteries are particularly heavy. While they are heavier and bulkier, SLA
batteries do maintain one advantage: they are easy to come by and they are
inexpensive. A SLA battery has lifetime of roughly 100-300 full charge cycles,
depending on use, size, temperature, quality and many other factors.
How long should a rechargeable
The life of a battery operating under normal conditions
should be between 300 to 800 charge-discharge cycles. This translates into one
and a half to three years of battery life for the average user. As your
rechargeable battery begins to die, you will notice a decline in the running
time of the battery. When your two hour battery is only supplying you with
twenty minutes worth of use, it is time for a new one. When a battery is not
used for extensive periods of time it should be removed from the device and
stored in a cool, dry and clean environment. Self-discharge will occur when the
battery is not used for an extended time period. Fully charge the battery
before use after storage. Long term storage will have permanent effects on the
I just received my new EMU, why
isn't the battery working?
Don’t worry. There is nothing wrong with your rechargeable
battery. Your rechargeable battery will arrive to you in a slightly discharged
condition. Therefore, it must be charged in order for it to work. We recommend
that new batteries should be charged and discharged two to four times in order
to allow them to reach their capacity.
Before you use your Rechargeable
Always refer to any charging directions that are provided
with your EMU for specific charging instructions as most rechargeable batteries
will require an activation charge prior to use. Rechargeable battery types
include the following, Lithium and Sealed Lead Acid
(SLA) variations (AGM, Gel). Prior to use or charging, be sure to remove any
protective guards or covers. Many chargers have light displays that will
indicate full charge status, however will continue to provide a charge to the
battery. we recommend an activating charge or 12-24 hours prior to first use.
For SLA batteries, which ship in close to full state of charge, we recommend a
slight boost charge for 2-4 hours with a charger appropriate to the amperage of
the battery. For all batteries, full run time may take up to 4-charge/discharge
How can I maximize performance?
Across all battery types, there are several things that you
can do to ensure the maximum production from your battery: Always store
batteries in a cool and dry place and should be fully charged before being
stored for long periods of time. Never leave your battery connected to its
charger for more than 24 hours. Doing so will shorten the life of your battery.
Keep your batteries clean. Clean the connections on your dirty batteries with a
cotton swab and alcohol. A clean battery will ensure a good connection between
your battery and its device. Keep your batteries dry. Moisture can corrode
contact points and limit charge/discharge performance. Do not leave your
Can I overcharge a battery?
Yes, overcharging batteries can reduce their effectiveness,
reduce the life of the battery, and may cause additional problems. Once a
battery is fully charged, you should take it off the charger.
Are lead acid batteries recyclable?
Yes. Lead acid batteries are the most commonly recycled
product in the world! The lead in the battery is re-used in new batteries. The
plastic containers and covers of old batteries are neutralized, reground and
used in the manufacture of new battery cases. The electrolyte can be processed
for recycled waste water uses. In some cases, the electrolyte is cleaned and
reprocessed and sold as battery grade electrolyte. In other instances, the
sulfate content is removed as Ammonia Sulfate and used in fertilizers. The
separators are often used as a fuel source for the recycling process.