The battery does not charge
The charger refuses the battery, stops immediately or never fills it.
- Verifications
- 5
- Until
- Simple tools
- Tools
- 2
Symptoms
- The charger displays an error or stops after a few seconds
- The charge ends but the battery is empty in play
- Charger does not detect battery
Causes
Most common to rare.
- Charger set to bad chemistry or bad number of elementsCommon
- Too much battery unloaded: the charger refuses to load it safelyCommon
- Balancing socket or defective connectorPossible
- Battery too cold or too hotPossible
- End-of-life battery or charger inoperativeRare
Verifications
In the order: we start with what does not require anything to disassemble. Check as you go, the list is kept in this browser.
LiPo (definition), Li-ion, LiFe and NiMH don't do the same. Choose the right chemistry, the right number of elements (2S for a 7.4 V, 3S for a 11.1 V) and a current of about 1C: 1.5 A for a battery of 1,500 mAh (definition).
Without toolsTools: Balancer chargerA LiPo is charged between 0 and 45 °C. Upon return from a cold part, or just after intensive use, wait until it is temperate.
Without toolsA LiPo is charged in balancing mode, plugged white. Check that none of his grandsons are torn: the charger often refuses the load when it does not read each item.
Without toolsTools: Balancer chargerOn the multimeter or on the charger screen. Elements that differ by more than 0.1 V betray a tired battery. Under 3.0 V per element, the LiPo was too unloaded: do not force the load.
Simple toolsCautionTools: Multimeter, Balancer chargerTry another battery on this charger, then this battery on another charger. Then we know which one of them is involved before buying anything.
Simple tools
Stop
Stop and hand over the reply to a technician if:
- The battery is inflated, pierced or heated during the charge: unplug it, place it on a non-flammable surface and drop it at the collection point
- The charger smells hot or emits an abnormal noise