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Information

This page is designed especially for those who wish to maintain their RC products in the correct manner. You will find a range of tips, care instructions, maintenance guides and general day to day advise on this page. The information will be updated on a regular basis so be sure to check back in the future for more tips!

Nitro

Nitro Engine Care & Maintenance

Proper nitro engine break-in is critical for long-lasting performance of your RC. Every new nitro engine should undergo a break-in procedure. Breaking in a nitro engine takes anywhere from one to two hours and about 3-5 tanks of nitro fuel. If you do the nitro engine break-in properly, the up-keep on your RC vehicle is less costly than if the procedure is done hastily and incorrectly. Patience with your engine will go a long way!

Adding After-Run Oil

After running your RC for a while you have to perform after-run maintenance. Part of that after-run maintenance includes lubricating the pistons and all the internal parts by adding after-burn oil to the engine cylinder head. Nitro fuel contains alcohol which, after a good run, tends to dry out internal parts within the RC engine. After-burn oil is the lubricant used to counteract this drying out. You'll only use a few drops at a time so a small bottle of after-burn oil will last quite awhile.

Nitro Caution

Nitromethane or nitro fuel is highly flammable. Just as you shouldn't smoke while fueling the family car, avoid smoking and open flames around the nitro fuel for your RC. When fueling your nitro RC, wipe up any spills and properly dispose of fuel-soaked rags.

HoBao - Engine Tuning and Setup Guide
Guide for engine setup (PDF)

Lithium Polymer Batteries

Understanding LiPo
Lithium Polymer cells are a tremendous advance in battery technology for RC use. However, due to the chemistry of lithium cells, there is a possibility of fire if charging is not properly done. It is unavoidable due to the nature of lithium itself.

Batteries should NEVER be left unattended while charging.
Be absolutely sure that the Lithium Polymer charger settings are correct for the battery pack being charged – both voltage and current settings.
Lithium Polymer must be CHARGED and STORED in a fire-safe container like a Lipo Sack.
Do not charge batteries near flammable items or liquids.
Keep a dry fire extinguisher nearby or a large bucket of dry sand, which is a cheap and effective extinguisher.
Never charge inside an automobile even when parked.
KEEP BATTERIES AWAY from children and pets at ALL times.

Charging/Discharging
Charge your lipo battery pack at 5C or less on a lipo approved charger only. If you choose to charge at any rate higher than 1C, you must use a balance charging system. Otherwise you risk your pack becoming severely out of balance over time, which in turn will significantly decrease the lifespan.

Do NOT charge your lipo packs on a NIMH/NICD charger. Your charger must be designed for lipo cells. Do not charge above 4.2V per cell, over discharge under 3V per cell. Never leave lipo packs unattended during charging or after a crash in your vehicle. Don’t leave the battery pack plugged into a vehicle while not in use. The pack can still discharge to an unsafe level and damage the pack even if all components are turned off.

Storage

If you don’t plan on using your lipo pack for longer than a week, store it at 60% of the pack’s rated capacity. Make sure to cycle your packs at least once per month since leaving them on the shelf for a prolonged period of time can cause performance issues due to increased internal resistance in the cells.

Warning
In the unlikely event of the Lithium ION/Polymer/Fe battery catching fire DO NOT use water to attempt to put the fire out, instead use sand or a fire extinguisher designed for electrical fires. When used correctly, Lithium ION/Polymer/Fe battery packs are as safe as any other rechargeable batteries. However they do have their own specific charge regimes (which should clearly be described in your chargers instruction manual) and if they are mistreated have the potential of catching fire.

If Lithium Polymer battery packs are short-circuited or over-charged above 4.2V per cell elemental Lithium may be deposited internally, and if the battery pouch is damaged this can escape from inside the battery. If this occurs a fire may be caused, as Lithium is highly reactive when exposed to water or moisture, producing flammable hydrogen gas and corrosive fumes. Elemental Lithium is not produced unless the battery pack is severely mistreated, so in normal usage there is not likelihood of fire.

Warranty & Accepted Terms of Use
The product warranty is for 3 months from the date of purchase and covers manufacturing faults only. It does not cover incorrect charging or discharging practices, mis-use or collateral damage however caused. As the end user of this product it is your responsibility to thoroughly inspect Li-Po batteries before and after use and before and after charging and as such you accept full responsibility for any injury, loss or damage resulting from you using or mis-using LiPo products. Wireless Madness cannot be held responsible for any consequential damage. Purchasing these batteries will be deemed as acceptance of these terms.