48v Panasonic 11.5ah or 13.5ah Shark Pack
48v Panasonic 11.5ah or 13.5ah Shark Pack
48v Panasonic 11.5ah or 13.5ah Shark Pack
48v Panasonic 11.5ah or 13.5ah Shark Pack
48v Panasonic 11.5ah or 13.5ah Shark Pack
48v Panasonic 11.5ah or 13.5ah Shark Pack
48v Panasonic 11.5ah or 13.5ah Shark Pack
48v Panasonic 11.5ah or 13.5ah Shark Pack
48v Panasonic 11.5ah or 13.5ah Shark Pack
48v Panasonic 11.5ah or 13.5ah Shark Pack
48v Panasonic 11.5ah or 13.5ah Shark Pack
48v Panasonic 11.5ah or 13.5ah Shark Pack
48v Panasonic 11.5ah or 13.5ah Shark Pack

48v Panasonic 11.5ah or 13.5ah Shark Pack

Cell Choice *
Add a 5.5mm Barrel Lithium Smart Charger (Not Included)
Choose a Premium Vinyl Wrap
Add a Luna Safe Ammo Charging Box

Current stock: 0
  • Slimmer than ordinary dolphin for smaller frames
  • Key lock releases pack from bike
  • Led light battery meter
  • Hard plastic to protect your pack
  • Up to 550-watt hours means incredible range in small package  (read article on watt hours)
  • 13s4p = 52 Genuine  name brand grade a Panasonic 18650 cells (see breakdown on 18650 cells)
  • 30amp continuous  BMS
  • Life Span: 400-1000 charges
  • 14.5 x 3.5 x 3.5 " (See pictures for detailed dimensions)


This new slim case is one of the newest ebike cases to hit the market. It  is designed to be as small as possible to fit inside the triangle of most bikes where the water bottle goes  and give a more stealthy look.   You can also mount it in any other place of your choice and it would even make a great backpack battery.    This is the same pack loaded with panasonic cells (same cell that Tesla uses) 

Ultimate Long Range in a very small size

We designed these packs using a common ebike case, but filled them with quality name brand 18650 cells utilizing the latest battery chemistry to get the highest possible power density. This means despite these packs small size and light weight, they will get you tons and tons of range. These packs have more amp hours than any commercial ebike, who skimp and use generic cells which are known for being low power density and short battery life.  In fact we so disbelieve in generic cells, we are not even offering them as an option. We only offer quality cells in our packs not cheap no name cells like almost everyone else does.

Name Brand Cell Choice

Luna Cycles only uses namebrand made in Korea or made in Japan 18650s. This pack is crammed full of the highest quality cells in the industry. 52 cells in a 13s4p configuration. That means 4 rows of  14 to give you the voltage and amp hour you need. Depending on the cell you choose you will have 11.6 or 13.5ah which means the amount of range you will get.

Here are your cell choices:

Panasonic  GA - 3500mah is the highest energy density available in an 18650 cell and this is one of the most expensive and most respected 18650s on the market.

Panasonic PF - This cell is an excellent choice if you are running a high power drive such as the BBSHD 1000w Bafang drive, or any high amperage system. This cell will easily put out 30amps continuous.  The cell is not the same energy density as the NCR B 3400 so you will sacrifice a little range. 

Read more about 18650 cell choice here: (breakdown on 18650 cells)



Regarding Amps: These packs will easily put out 30amps (1500 watts) and even more for short bursts.

More than likely your controller is less than 30amps and then you don't have to worry since your controller will only take the amps  from the battery what it needs. You cannot fry a controller by selecting a high performance  battery with too many amps. Voltage however, you need to be careful with. 

Regarding voltage: This is a 13s (48 volt) battery, which means it should be easily compatible with any 48v kit or ebike on the market no matter what the manufacturer might say (they would prefer that you pay more and buy only their batteries). 



Most people mount this battery to the downtube of their frame (where the water bottle usually goes) but its very versatile where it can be mounted. Because it is so lightweight (7.5  pounds) it can also be used in a backpack.

It even fits easily in one of our triangle bags

Because of its hard plastic enclosure you dont need to worry about padding this battery like you would on one of our shrink wrapped batteries. 

This is a very easy to mount battery. It has a mounting bracket that will mount to most water bottle screw holes in the frame. If not you can drill threaded holes into your frame to accommodate it. Or you can use zipties etc.  Once the bracket is installed its a breeze to take the battery on and off....so you can have extra batteries that you carry on your ride that would easily fit in a backpack or on the racks on your bike. 

Installation and documentation

Luna Hardcase Battery FAQ


Support notes


If ordering a battery to overseas European address it must go via ocean freight as described on the shipping info page.  Battery shipping quote may not accurately reflect shipping cost needed for overseas orders, if possible use shipping option "select this if order includes battery". In any case Support will contact if additional funds are needed.


(see questions and answers tab for miscellaneous info)




1. My battery pack stopped charging, what should I do?
2. My battery is reading (any #) volts, how much life is left before I need to recharge?
3. How can I increase my range without replacing my battery?
4. How long should i leave the pack plugged in?
5.How do i know when it is fully charged?
6.Are there things I can do to best care for the battery and prolong its life?
7. Why does my charger have a different voltage than the battery listed on the label?





1. Often if this happens it is due to the anti-spark feature built into the BMS. Say you did not properly make a connection somewhere and the wires sparked, the BMS would shut itself down to prevent damage to the system. If this happens the first thing you always want to do is to try resetting the BMS by using your charger to try charging through the discharge connector for a few seconds, maybe a minute. You just run a jumper (basically regular wires) from the charger's connector to the battery's discharge contact, making sure you go positive>positive and negative>negative. At Luna we call this jump starting it, instructions can be found here:  https://lunacycle.com/jumping-your-lu...-battery-pack

2. This is a 48v nominal pack. As seen in the chart below this pack is full at ~53V and empty at ~42V. For long battery life try to keep voltage at least between 52-43.2V (A charge percentage of between 90%-10%)

3. Here is an article that offers some good advise for increasing range. You can find it here

4. Well you should leave it plugged in until it is charged or maybe a little bit before it is fully charged, optimally you want it to be within a range of voltage/charge percentage equaling something like 80 to 90%, perhaps a bit lower if storing for a long time such as over the winter. This will optimize it for the longest amount of cycle life. You can still charge to 100% right before a ride though as this does not negatively affect the cells much, it is more about not leaving the cell at 100% for a long period of time than about never letting it reach that charge level.

5. If your battery has a voltage display on it then you can tell that is fully charged based on the voltage readout, we have charts on every listing for each type of battery pack showing what voltage equals what the charge percentage. You can also test the voltage with a multimeter directly from the discharge connector.

6. You can best care for the battery by not running it all the way down to zero, for the best care of it you really want to keep it above 20%. This is where having a large capacity battery is great because you will not be putting it through such a high depth of discharge, thus increasing its cycle life. Another way of caring for the battery is to make sure you use the right type of cell for your application, and if you are using a cell not designed for high amps, try not to pull too much amps from it. So if you are for example using an NCRB pack designed for range, if you want max cycle life maybe don't use it for a high performance application that would be better suited for a cell like GA or 30Q.

7. The voltage listed on your battery is just the nominal voltage, it actually goes higher and lower depending on the charge. The charger outputs at the highest voltage that the battery would reach when fully charged. See the chart on the listing for your particular battery and look at the 100% voltage level, that is about the voltage it should be charging at.


7 Reviews

Longwing Dec 13th 2017

Perfect battery pack for my use

I purchased this battery for use in a commuter bike. It's a fairly heavy cruiser-style model, not a featherweight, and I load it down daily with gear. My commute is about 2 miles each way. Nearly all uphill in the morning and downhill at night. I typically ride at pedal assist 3 (out of 9), ramping up to 6 or even 9 for the worst of the hills. I never bother with the throttle.

With those settings, the pack easily goes a week between charges (and can probably go longer). I use a conditioning charger to charge the cells to 85% each weekend. It'll have years of viable life, and it's perfect for my needs.

Robert Malone Nov 27th 2017

great battery

great battery and a great price but the wires that come with it are too short to use so I had to replace them.

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