Originally Posted by jdsrace1

NiMo show us were it states what you are saying.

Lithium Based (LiPo) Battery Packs.
The storage, charging and use of Lithium based batteries (LiPo) can give rise to serious safety implications. The BRCA will publish guidelines for the safe use of these batteries on the BRCA website. It is imperative that the guidelines are studied and adhered to.
3.3 Lithium based (LiPo) battery packs must have a hard, protective case that completely envelopes the cell(s). The case should be made from ABS or a similar 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 the exit of wires.
3.4 For 7.4v Packs: The maximum case sizes allowed are as follows: -
Length: 139.0mm.
Width: 47.0mm. (The max. width includes any side exit wires).
Height: 23.5mm. (In addition, chassis location protrusions are allowed)
Saddle-Pack cells are allowed, and must comply with the above width and height dimensions. Saddle-Pack cells must have a combined length dimension of 139.0mm max when placed end to end.
For 3.7v Packs: The maximum case sizes allowed are as follows :-
Length: 93.0 mm
Width: 47.0 mm
Height: 20.0 mm
3.5 Individual cells used in the construction of the battery pack shall be rated at 3.7 volts nominal. Individual cells may be wired in parallel.
For 7.4v Packs: The maximum connection ‘In Series’ is two, to give a Final pack voltage of 7.4v nominal.
For 3.7v Packs: Cells can only be connected in parallel, to give a Final pack voltage of 3.7v nominal.
3.6 The battery pack shall have leads extending from the case for the positive and negative electrical connections using wire of adequate size to handle discharge rates acceptable to racing applications. Alternatively, the case shall have internal connection points for these wires clearly marked positive and negative so the user can apply the lead wires. It is strongly advised that the link wire for Saddle Pack cells utilises a plug which will separate with any undue force.
3.7 The case must have the original suppliers label intact, stating the rated voltage and the pack capacity. Maximum capacity is 5,500 mah. The Brand name/logo shall be easily readable.
3.8 All LiPo batteries must be charged with a LiPo-capable charger using the industry standard CC/CV (Constant Current/Constant Voltage) charge profile.
3.9 LiPo batteries may be charged to a maximum of:-
8.40V for cells/batteries connected in series giving a pack voltage of 7.4v nominal.
4.20V for cells/batteries connected in parallel giving a pack voltage of 3.7v nominal.
Overcharging is a serious safety hazard and will not be tolerated.
3.10 Any competitor found to be charging cells using a charger that is not specifically designed for LiPo batteries, or using a charge profile other than the industry standard CC/CV, will be disqualified from the event.
Any competitor found to have charged LiPo batteries to above 8.40V or 4.20V (as detailed in 3.9) will be disqualified from the event.