Remember to use Lipo Bag when charging and storing your Lipo batteries!
The markings on LiPo batteries give many people headache. In this article, we’ll discuss what you’ll need to know about the markings when you’re buying LiPo batteries.
Let’s use a 7.4v 7200 mAh battery as an example. The marking on it says 70C-7200-2s1p
This marking indicates the discharge current stated with a C rating, where 1C equals to the nominal current. So, in a 7200mAh battery 1C equals to 7,2A which equals to 70C = 70*7,2=504A. This means that the maximum discharge rate is 504A. C rate indicates the maximum discharge current of a battery. This should match the amount of current your car draws. C-rate doesn’t determine the maximum speed of your car, but it impacts the throttle response. If the C rate is too low, it might result in a rubber band-like throttle response. When choosing batteries for your car, it’s better to get batteries with a higher C rating because a C rating that does not meet the current requirements of your vehicle might damage the batteries. You can tell your batteries’ C rating is too low if the batteries warm up way over body temperature. The speed controller also warms up more when using batteries with lower discharge rates.
This indicates the battery’s capacity, in other words, how much power is available. This directly impacts the run time of your vehicle. The greater the capacity, the more you’ve got run time. Typically, the batteries’ capacity is between 4000 and 6000mAh. A battery with a greater capacity can discharge more power than a battery with a smaller capacity. For example, the current output of a 4000mAh battery with a 25C rating is 100A whereas that of a 5000mAh battery is 125A.
This indicates the internal configuration of the battery. 2S means that the battery has two cells in series to get a voltage of 7.4v. 1P means that the cells have not been wired in parallel but both cells have the nominal capacity, in this case 7200mAh. 2s2P means that there are two cells wired in series and two in parallel with them. Each cell has the capacity of 3600mAh/cell.
This marking means that the battery has a hard casing.We strongly recommend to use hardcase batteries in RC-cars.
The markings after the information on the cells (e.g., 2S1P) can vary depending on the manufacturer. Depending on the brand, the markings at the end might tell you information such as which model series the battery belongs to or what type the casing is. It’s important to choose batteries that best suit their purpose.
How the used voltage affects current
Remember that the more there are cells in the batteries, i.e. the higher the voltage is, the smaller the amount of current. A high C rating means a more vigorous current output, but the C rating does not have to be as high when driving with 3S batteries (11.1v) and 2S (7.4v). I’ll explain this using an example. If the engine is 700W and you’re using a 2S battery with 7.4v voltage, the total current is 700/7.4=94.6A. When the voltage is increased to 3S, i.e. 11.1v, the current is 700/11.1v=63.1A. The less there is voltage in use, the higher the current (A). The greater the A, the more the components will warm up. Please note, however, that the voltage cannot be increased arbitrarily, but you need consider the technical restrictions of the rest of your components. If the electronic components can handle an increase in voltage, you need to switch to a smaller pinion gear in the motor to avoid over-gearing (and overheating) resulting from the increased speed of rotation caused by the increased voltage.
This is why high-quality batteries can handle demanding use better. When the current output is a decent 60–100C, the voltage won’t dip during acceleration. This means that the amount of needed current (A amperes) is smaller and the electric components warm up less because the voltage remains the same during the whole run.
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An international GLS parcel is delivered to neighbouring states of Finland like Sweden or the Baltic countries in a standard delivery time of 24 to 72 hours. To more distant European countries the international parcel dispatch takes between three and six working days, to remote areas up to eight days. Rough estimate is 1 week from order to delivery.
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We accept returns of new, unused merchandise within 14 days from the delivery. Please contact us at [email protected] to receive return information. The customer is responsible for any return costs unless otherwise agreed to with our customer service. We try to return the money with the same payment method that was used to pay for the order, if its not possible we make a wiretransfer. You can also request a gift card if you are making a new order to speed up the process.
We also accept returns after 14 days upto 50days, but we refund them with a giftcard to our shop so you can replace them with any products we sell. Please contact our customer service for details.
After we receive the merchandise and verify its re-sellable condition, we will refund the money or give you a giftcard. Depending on the item this will take 1-3 days after we have received the item. If there is a delay we will contact you.
Please note that all parcels that are returned to us because customer has not picked it up / accepted it or paid customs fees of it will processed. Handling and shipping costs will be reduced from the refunds.
Note! Every return made without notice via email will be charged with handling fee of 20€. Handling fee will be reduced from the total refund.
In the rare occurrence that the shipment has been damaged, please take pictures and send those to our customer service [email protected] immediately and we will make sure we get you sorted and back to enjoying our hobby. Also notify the courier bringing you the shipment that it has been damaged.
If you feel that your product is defective please send us a email and we will let you know what to do next. Most items do not have a warranty as they will break in normal usage. For example if you hit something solid or take a larger tumble. Properly used items should easily last 3-12 months and during this period we are able to replace broken items if they have a manufacturing or material fault. We have years of experience with different makes and they all have different warranty policies. We have chosen to work with brands that have a good understanding how to serve their customers and you can be assured that you will get the best customer experience possible with us.
We do not replace or exchange products that are not defective or broken by improper use or have not been maintained. But we do help and teach you how to do things properly so you do not break anything in the future, just email us and we will help you out. We are however unable to wrench for you, its part of the hobby so its important that you will learn that part also your self, we have great tools to sell you so just ask us what you need.
Note! Many manufacturers are strickt that electronics are not allowed to be modified (connectors changed etc.) without disabling the warranty. Remember to check this from your products manual.
Don’t worry you are safe with us! Most of our customers feel that they get excellent service in the rare occurrence that they encounter a problem with the product they have bought.
And remember if you run in to a problem or you feel that there is a problem with arrived products do not hesitate to contact us. We are here to help and we do our best to sort it out as soon as possible.
We ship a lot of orders each day and rarely there are errors. We do however try to minimize the effect on the customer. Please contact us immediately if we have made an error and we will make it right.
Always contact us before returning any product, we can not take responsibility for shipments that are sent without prior notice. Its very important that we can tell you how to mark the parcel so it will be processed in a timely fashion.