ORIGINAL: aussiesteve
A battery pack with a dud cell or two will also do this. Fresh, good condition properly charged 4 cell NiMh or NiCd pack and see if it makes a difference. Is it a genuine RCExcel that is installed as not far fom where CRRC make their engines there is a company that supplies a near identical looking unit that is not very good in the long term?
A couple of things about Chinese products in General
1 - Their business culture is based on selling on price. Raw materials are sold at similar pricing around the world (specification for specification), They have rampant inflation so that wages, rents etc are increasing rapidly. Their foreign exchange rate is dropping the value of thier currency. The only way they can keep competing in the manner they are used to (on price) is to reduce their input costs - cheaper labor, cheaper materials, cheaper rents and less "wastage". Of course there are one or two exceptions that do understand the value of a decent quality product adn backup service but they are the exception by far.
2 - If the Chinese taking over the world is really that much of a concern to us - why are we paying them to do it?
We pay for & giveeverything for other countries...because our leaders are stupid............