Miner's lanterns are otherwise called horse racers and there are a dozen of their varieties. The battery packs inside the flashlights are of 3 types. Some need topping up electrolyte, while others do not. Refill battery packs are not so sensitive to the discharge / charge mode.
Instructions
Step 1
All of these lights have to be charged periodically. If you have an upgraded flashlight, it will flash when the voltage drops. If there is no signaling circuit, see what light intensity it has at 3.0 V, track the critical moment and charge the flashlight battery. The battery must not be discharged less than 3.0 V and charged more than 4.8 V, otherwise it will swell, as the water will decompose.
Step 2
Observe the following guidelines when using chargers. Discharge the flashlight to 3.0 V. If you have a factory charger, it will do the right thing by itself: first, it discharges the battery to a value of 3.0 V, then charges it to 4.7 V. When the voltage rises above this value, the “Accident.
Step 3
When charging, make sure that the current strength is 1.08 A or slightly less (in this case, it takes more time to charge. You can charge the flashlight even at about 92 A). Amperage greater than 1.08 A is contraindicated. Monitor voltage. It should be from 3, 8 to 5, 4 V. If the voltage is less, the flashlight will not be charged; if it is larger, parallel decomposition of water will occur.
Step 4
Do not mistake the polarity, otherwise you will ruin the flashlight. To do this, first mark "+" and "-" near the contacts on the charger and flashlight. The contacts are located at the head. Find a metal head with a washer, located 4 cm from the place where the cord is connected - there is a "minus". The "plus" is located in the recess, which is located on the metal holder. There is a slotted bushing inside the groove, and there is a contact under the bushing.
Step 5
Bare the contact - to do this, turn the bushing 180 degrees around its axis until you see that the contact is exposed through the slot, connect the flashlight batteries to the charger. Watch the temperature of the battery - if it overheats, it can swell. To do this, open the power supply near the flashlight.
Step 6
Do not leave the charger on for more than 13 hours, otherwise it will automatically go into “discharge” mode. If you have a homemade charger, monitor the charging process with a voltammeter.
