52v Panasonic 11.5ah or 13.5ah Shark Pack

Cell Choice *
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Add a Luna Safe Ammo Charging Box

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Australia and New Zealand customers check out the Aussie Luna site for this product

Read electricbike-blog.com review of the (NCRb Shark pack HERE). 

Read their review of the (GA Shark pack here)

  • Slimmer than  dolphin for smaller frames
  • Our lowest profile pack
  • Pick a custom vinyl skin to add color to your Shark
  • Key lock releases pack from bike
  • Led light battery meter
  • 11.5 or 13.5ah depending on cells you pick
  • Up to 702-watt hours means incredible range in small package  (read article on watt hours)
  • 14s4p = 56 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 is a 52v battery designed to squeeze more power out of your stock 48 volt system without damaging your  48v controller or motor. To get more information read our article on 52 volt batteries. 

Not only does the 52v battery give you more power, it also gives you more range than a comparable amp hour 48 volt battery.  (read our story on calculating range) With the Panasonic NCR B cells you would have an amazing 700 watt hours, enough to get you up to 50 miles on a low power kit like the BBS02. 

One draw back to the  52v pack is it will not give you an accurate battery reading on kit dash displays made for  48v.  So consider an amp hour guage like the Cycle Analyst or Battman. 

We took the best name brand cells on the market for energy density and stuffed them into this little case to pack incredible range and still keep your ebike lightweight and stealth looking. 

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.

Smart Battery

Luna Cycles builds its packs with the finest BMS (battery management system) available so that you can plug in your battery and not worry about over charging. Your cells are automatically balanced by the internal bms in the battery. Our Bms includes such features as temperature over heat  protection and advanced cell balancing. These features not only get the maximum performance out of your bms they also keep your battery from getting to low, charging too high, or getting too hot and will automatically shut off your pack if it senses something is wrong.

Cell Choice

This pack is crammed full of the highest quality cells in the industry. 52 cells in a 14s4p 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 This cell is the latest innovation, and probably the highest quality 18650 cell on the market. It offers both energy density and high amperage performance...

Panasonic  NCR B 3400 - 3400mah is one of  the highest energy density available in an 18650 cell a However this is not a cell known for high power. So if you are planning to climb mountains or do a lot of off roading at full power we recommend the Panasonic PF Cell instead.  The NCR B will get hot if pushed too hard...and even though the battery has a built in high temperature cut off, getting your pack hot too often will reduce the lifespan of your battery.

Panasonic PF - This cell is an excellent choice if you are running a 30amp or higher controller. IT offers both high performance and descent energy density. It is a 3000mah cell.


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 14s (52 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 it’s very versatile where it can be mounted. Because it is so lightweight (7.5  pounds) it can also be used in a backpack.


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 zip-ties etc.  Once the bracket is installed it's 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.


For an independent review of this pack check out (this article) where Karl from electric-fatbike.com calls our shark  the  'finest pack he has ever owned'.

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:  /jumping-your-lu...-battery-pack

2. This is a 52v nominal pack. As seen in the chart below this pack is full at ~58V and empty at ~45V. For long battery life try to keep voltage at least between 56.7-46.3V (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.


$30.00 (Fixed Shipping Cost)

15 Reviews

Ben Dec 14th 2017

2600 miles and no issues

Love it. Mounted to the down tube it affords much better handling than my old rack-mount battery. I charge up to 80% most times with the mini charger, and there has been no change in capacity as far as I can tell. I ride in Florida so the pack sees plenty of heat and rain, never had an issue there. I use for commuting to work, and I have about 25 rides left before the pack pays for itself (due to savings on gasoline).

G Oct 1st 2017

Plastic case is too fragile / bad quality

The small plastic tabs that attach the case to the cradle broke one after the other, even thought I strapped the case to the frame using 2 very strong Scuba Diving Rubber Knife Straps. Keep in my mind that it is mounted on a city bike with front suspension (not a hardcore MTB). Luna's response to this issue was that I could buy a new battery pack. But in my view there is a design flaw, so the tabs would break again. I strongly suggest anyone to buy a different (stronger) battery back.

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