EMU Trike
Electric Multi-Use Trike
Battery Technical Information
Which is the best battery for you?

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 battery last?
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 battery's capacity.


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 Batteries.
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 cycles.


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 battery dormant.


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.