CNHL (China Hobby Line) Long Range Series 5000mAh 21.6V 6S 21700 Li-ion
Series: CNHL (China Hobby Line) Batteries for drones
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The CNHL Long Range 5000mAh 6S1P is a lithium-ion pack from CNHL (China Hobby Line) for small FPV drones flying long range. Six BAK cylindrical cells in the 21700 format are connected in series, each with 5,000 mAh.
A nominal 21.6 V and 5 Ah give 108 Wh; at 432 g that is 250 Wh/kg at pack level. The maker quotes 5C continuous discharge, which is 25 A; 8C (40 A) is intended only with a temperature cut-off at 70 °C. For long-range flying at a thrifty cruise current this is enough; full acceleration with continuous current above 25 A overloads the cells. The connector is an XT60; the pack is also offered with an XT90.
108 Wh lies between 100 and 160 Wh. Under the IATA passenger leaflet (February 2019 edition) such a spare battery is allowed only with the airline's approval, at most two of them and only in hand baggage; the terminals must be protected against short circuit. UN 38.3 testing is the precondition. The pack alone weighs more than the 250 g take-off mass of EU class C0.
In selection the cruise current decides: the lower the current demand, the better Li-ion at 5C fits. Wear shows as falling capacity and heat under load; since only one cell works in each stage, every cell is visible at the seven-pin balance lead, and a stage that deviates is a warning sign. In the cold the current capability drops markedly. Storage is in the middle of the charge range as the maker specifies.
Technical data
Other data
| C-rate | 5correct |
|---|---|
| Capacity (mAh) | 5,000correct |
| Cell chemistry | Li-Ioncorrect |
| Cell count (S) | 6Scorrect |
| Connector | XT60correct |
| Energy (Wh) | 108correct |
| Energy density (Wh/kg) | 250 kgcorrect |
| Form factor | Packcorrect |
| Nominal voltage (V) | 21.6 Vcorrect |
| Weight (g) | 432correct |
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