Charging a 2S LiPo at the track: the rules drift venues actually post

1. Read the venue's rules of entry before you leave home. RC Drift QLD's rules of entry state that customers may not charge on the premises at all, because its public liability insurance does not permit it; the page says the track charges packs for customers at $2 each. If you turn up at a venue with that rule and no charged pack, you are not running until it is sorted.
2. Bring a LiPo safety bag and use it for charging and for discharging. The R.C.D.C. regulation requires a bag for both, and says that charging outside a bag, or with the bag's lid open, means disqualification if officials see it. RC SHOP MECCA's circuit page says to always charge in a bag and to follow the maker's charging instructions. A 2019 CLUB.D post says the same thing: charge in a LiPo safety bag.
3. Check your pack is the type and size the venue allows. R.C.D.C.'s regulation allows 2S LiFe (6.6 V) or 2S LiPo (7.4 or 7.6 V), in a hard case, within 139 x 47 x 25.1 mm. Other venues set their own limits; do not assume a national championship's dimensions apply at a shop track or the other way round.
4. Set the charge-end voltage to match the pack you actually own. R.C.D.C. posts two different limits: no more than 8.40 V for a 7.4 V pack, and no more than 8.70 V for a 7.6 V pack. The Gens Ace and Tattu LiPo operating instructions say never to charge beyond the rated maximum, and give 4.2 V per cell for standard LiPo. Those are not interchangeable numbers. Follow the voltage printed on your own pack and set your charger to it.
5. Inspect the pack before it goes on the charger. R.C.D.C. bans badly swollen packs. RC SHOP MECCA says swollen LiFe or LiPo packs are not allowed in at all. The Gens Ace manual says to stop and isolate a pack that is damaged, hot or swelling, and not to leave a pack unattended while discharging.
6. Take your batteries home with you. R.C.D.C.'s regulation says a battery left in the pits after the venue closes means immediate disqualification and the owner's name posted, and that the owner pays in full for any fire damage.
7. Put packs away at storage voltage if the charger can do it. The Gens Ace manual gives 3.6 to 3.9 V per cell for long-term storage and says to keep packs in a non-conductive, fireproof container. None of the sources read here gives a time limit for when storage charge becomes necessary, so use your charger's storage programme as the maker describes it.

It is worth knowing which of these rules are written with a consequence attached, because those are the ones officials act on.

R.C.D.C. is the Japan R/C Drift Community, which runs the All Japan E-Drift Championship at Tsukuba RC Park. Its rules apply to its own events; a local shop track writes its own. All of the pages above were read on 29 September 2026, and a venue can revise a rules page at any time.

• Treating 4.2 V per cell as the number for every pack. It is the figure the Gens Ace manual gives for standard LiPo. R.C.D.C.'s separate 8.40 V and 8.70 V limits exist because a 7.6 V pack is charged higher than a 7.4 V one. Set the charger to your pack's own rating.
• Using the bag as a storage box but charging outside it. R.C.D.C.'s wording covers charging and discharging, and specifically names an open lid as a violation.
• Assuming charging is available. At least one venue read here forbids customer charging entirely for insurance reasons. Arrive with packs charged, or ask first.
• Running a pack that has started to swell. Two of the venues turn swollen packs away, and the maker's manual says to stop using and isolate a pack that is damaged, hot or swelling.
• Leaving a pack behind in the pits. At an R.C.D.C. event that is an immediate disqualification with the owner named.

Before your first session, find the entry rules page for the specific track you are going to and read the battery paragraph. If the page does not mention charging, message the track and ask two questions: whether you may charge on site, and what pack types and sizes are allowed. Then set your charger up at home with the right chemistry, cell count and charge-end voltage for your pack, and practise using the storage programme, so the only new thing at the track is the driving.