5v Power Rail Capacitor for Little FOCer v3.0 and v3.1
5v Power Rail Capacitor for Little FOCer v3.0 and v3.1

5v Power Rail Capacitor for Little FOCer v3.0 and v3.1

Regular price$0.00

  • $15 Flat Rate Shipping (Domestic Only)
  • Low stock - 4 items left
  • Inventory on the way

This product (and shipping) is available to all MakersPEV customers at no cost who have previously purchased a Little FOCer v3.0 or v3.1 [prior to April 10, 2023] who notice abnormal system behavior during motor detection or bootup processes. This may be most noticeable when upgrading from VESC* v5.3 to VESC* v6.x open source firmware.  

*VESC is a registered trademark of Benjamin Vedder

What is it?

A 100 microfarad capacitor connected a 2 pin JST.

How is it installed?

Connect the 2pin JST to the 5v CAN power header and secure the capacitor. We recommend hot gluing it to the top of the BLE module on the Little FOCer as shown in the product picture.

What if i am using CAN power for something else?

The solution will work anywhere on the 5v rail. 

What does it do?

Under some conditions, (intermittently happens when hot plugging a high voltage battery) the 5v rail can power on too fast and cause a race condition that affects power delivery. The provided capacitor enforces a startup delay that circumvents the intermittent race condition from occurring.

Am I at additional risk while riding?

NO! This is a non-critical issue that has only been observed to happen intermittently during startup.  The vehicle would not be rideable in this startup condition and there is no risk of it occurring during normal operation. The issue was existent but not typically observed in VESC* firmware's prior to 6.x. This is a fix to provide additional compatibilities to our product and is not a recall. 

How do I get one?

All orders will be matched to an existing lfoc3.0/3.1 order under the same customer name or the order will be cancelled and not be fulfilled. Contact support@makerspev.com if you have any questions. LIMIT One Capacitor Per Little FOCer order.

Order Processing Time
We require 2-3 business days to process and pack your order. This means that your order will typically ship out within 2-3 business days after it has been placed. Please note that our processing time may be longer during peak shopping periods, sales, or holidays.

Shipping Rates and Methods
We currently offer standard shipping to the United States and select international destinations. Our shipping rates are calculated based on the weight and destination of your order, and will be displayed at checkout.

Delivery Times
While we strive to provide accurate delivery estimates, we cannot guarantee delivery dates or times. Delivery times will depend on your location, the shipping method you select, and the carrier's delivery schedule. Please note that delivery may be delayed due to factors outside of our control, such as weather, customs clearance, or carrier delays.

Tracking Your Order
Once your order has shipped, you will receive a shipping confirmation email with a tracking number. You can use this tracking number to track your package online through the carrier's website.

International Shipping
For international orders, please note that the recipient is responsible for any customs fees, import duties, taxes, or other fees that may be imposed by their country's customs office.

Returns and Refunds
Please refer to our Returns and Refunds policy for information on how to return or exchange your order.

If you have any questions about our shipping policy or your order, please contact us at support@makerspev.com.


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Though we are working hard to make this as easy as possible with no soldering and programming needed this is ultimately still a DIY solution.

The choice in parts and settings are still up to the user to decide. This allows for great creativity but does require some knowledge. If you are new, please research existing builds and settings before proceeding!

The Little FOCer is simply a motor controller. It was created to run any electric motor.

Yes but the pint/GT uses proprietary connectors therefore will need some DIY in order to make it work.

You can use any battery that fits in your build up to 20s! At this time there are a few manufacturers that make compatible upgraded batteries. 2 that we would recommend include Z Battery Solutions and The Board Garage.

Pev.dev is the best collection of information at this time and I would recommend searching there for common issues but if you have more specific needs feel free to reach out to us at support@makerspev.com

The BMS choice is ultimately up to the user but a few popular options at the moment are ZBMZ, the ennoid and changing an xr/pint bms to charge only.

The Makers PEV BMS is in the works and coming soon.

Yes we ship anywhere we can from the United States. International shipping rates will apply and are not included in our $15 flat rate shipping.

Though most of the connectors from an XR controller can be reused it will require quite a bit of DIY and is significantly harder.

The only part that is not compatible is the momentary switch on the XR. The Little FOCer uses a latching switch.

No, our product replaces it completely and does not work with it in any way. You can choose to use either the Littler FOCer or your FM controller, but you cannot use them together.

No, at this time we are here to support people in their own builds and provide the equipment needed to do so.

VESC is the software that the Little FOCer hardware runs on similar to how Linux is the operating system for many different computers.