LiPo batteries now make up the vast majority of batteries used in RC racing and require specific regulations to ensure safe use.
Our governing body, the BRCA, have detailed rules and regulations regarding LiPo batteries and all drivers should be aware of these. Visit the BRCA website to view the Handbook and Rules documents.
At FORCC, the following rules apply:
Installation
Any battery pack(s) carried on a model car must be able to be disconnected quickly without the use of tools in an emergency
Direct soldering is not allowed
Charging/Discharging
All Lithium based drive batteries must be in a ‘closed’ LiPo sack when being charged or discharged
LiPo sack is defined as a receptacle designed for the purpose of charging LiPo/LiHV batteries and is of a suitable construction so as to contain a LiPo/LiHV fire
Sacks must be obtained from a recognised supplier to the UK RC industry
Charging of Lithium based batteries (LiPo, LiHV etc.) at all events must adhere to procedures detailed in BRCA Electric Board rules. These procedures are covered in Electric Board rules 3.6, 3.7, 3.8, 3.10
‘Over’ Charging of Lithium based batteries is potentially dangerous and maximum charge cut-off voltages must be strictly adhered to
The maximum charge cut-off is based on 4.20v per cell (LiPo & LiHV)
Therefore, the maximum charge cut-off voltages allowed are: 2S – 8.40v (LiPo & LiHV)
Charging/discharging must be performed with a suitable LiPo/LiHV charger set to the correct mode/function
Construction
All Lithium based ‘drive’ batteries, over 20wh, must have a hard, protective case that completely envelopes the cell(s)
The case should be made from ABS or a similar strength material
The two halves of the case must be factory sealed in a way that any attempt to open the case will destroy the case
The only opening in the case that is allowed is for exit wires or ‘pin type’ connectors
NEVER use any type of battery that shows signs of damage or puffing
Anyone found to be breaking these rules may be asked to leave the race meeting and reported to the BRCA
