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36 VOLT CHARGER accuse

36 volt charger an innovation has preserved pace with the modern technology revolution, as in many other areas, and so present battery charging philosophy provides 3 phase (or 2 or 4 stage) microprocessor regulated charging profiles. These room the "smart chargers", and also quality units generally are not discovered in sleeve stores. The 3 stages or actions in lead mountain battery charging room bulk, absorption, and also float mode(or sometimes finish shut off in part cases). Qualification, or equalization are periodically considered one more stage, commonly for promotional purposes. A 2 phase unit will have the bulk and float stages. The is essential to use battery manufacturer"s recommendations on charging procedures and voltages, or a high quality microprocessor regulated charger, to maintain battery capacity and service life.

You are watching: How to charge a 36 volt system with a 12 volt charger

An older 36 volt charger would attribute a addressed charging voltage, high sufficient to "force" power (amps) right into the battery pack. The reduced the early battery voltage (state of discharge), the easier this forcing procedure is, for this reason you might see the amp meter (if therefore equipped) run approximately the charger"s maximum output amperage, and also stay there a while. As battery pack voltage rises, together it does as the state of fee increases, the harder that is for the 36 volt charger to force the amps in, therefore the amp rate decreases. Eventually, the charger will a allude where it"s calculation voltage can"t force any an ext into the battery pack, for this reason current virtually stops, yet depending on wherein this voltage point is, it may be high sufficient to overcharge end time, or store the battery in the gassing stage, dry out a flooded type battery. This chargers should be monitored for this reason, and disconnected as soon as the amp meter drops to the short point. Some of the older technology units have actually timers, and depending ~ above the setting and battery charge status at the start of the fee cycle, may finish up end charging if set too long, or under charging, if the timer is not set long enough. Either problem can damages batteries, overcharging damaging quicker. Recurring undercharging allows sulphation to develop up, and eventually harden top top the plates, diminishing battery capacity. Reduced run time on batteries that space not specifically old is the normal symptom that this sulphation.

The "smart chargers" are profiled with contemporary charging viewpoint in mind, and likewise take info from the battery load to administer maximum charge advantage with minimum observation. The microprocessor enables a full charge bike without need of setting a timer, and doesn"t undercharge or overcharge, permitting proper battery management and maximum battery life, if offered regularly.

True gel batteries typically require a specific charge profile, and also a gel details or gel selectable or gel perfect charger is called for. The peak charging voltage for gelatin batteries is 2.3 come 2.36 volts every cell, and also for a 36 volt charger this functions out come 41.4 to 42.5 volts, i beg your pardon is lower than a wet or AGM kind battery demands for a complete charge. Exceeding this voltage in a gelatin battery can reason bubbles in the electrolyte gel, and also permanent damage, together the bubbles in the gel execute not dissipate when the end voltage problem ceases.

Three stage Battery Charging

The BULK phase in a 36 volt charger involves about 80% the the recharge, inside the charge current is held consistent (in a constant current charger), and voltage increases. The correctly sized charger will give the battery as much current as it will accept approximately charger volume (25% that battery capacity in amp hours), and also not advanced a wet battery over 125 F, or an AGM or gelatin (valve regulated) battery over 100 F. The target voltage because that a 36 volt charger because that AGM or some flooded batteries is 2.4 to 2.45 volts every cell, i m sorry is 43.2 come 44.1 volts.

The ABSORPTION phase (the continuing to be 20%, approximately) in the AGM/flooded 36 volt charger has actually the charger holding at the absorb voltage (between 43.2 VDC and also 44.1 VDC, depending on charger collection points) and decreasing the existing until the battery pack is fully charged. If the battery won"t organize a charge, or the present does no drop ~ the supposed recharge time, the battery load may have actually some long-term sulphation.

The FLOAT stage is where the fee voltage is reduced to around 2.25 volts every cell, i beg your pardon is roughly 40.5 VDC and also held constant, while the present is decreased to much less than 1% that battery capacity. This mode have the right to be offered to keep a fully charged battery pack indefinitely. Part chargers shut off rather of maintaining a to rise voltage, and monitor the batteries, initiating a fee cycle if necessary.

Recharge time deserve to be approximated by splitting the amp hours to be changed by 90% that the rated output of the charger. For example, a 100 amp hour battery pack with a 10 % discharge would need 10 amps replaced. Using a 5 amp 36 volt charger, we have 10 amp hours/(.9x5) amps = 2.22 hour recharge time estimate. A deep discharged battery pack deviates native this formula, requiring an ext time per amp to it is in replaced.

Recharge frequency recommendations vary from professional to expert. It shows up that depth of discharge affect battery life much more than frequency of recharge. Basically, lead acid batteries, including the sealed types (AGM and Gel) like to be kept completely charged once possible. For example, recharging once the devices is not going to be provided for a if (meal rest or whatever), might keep the average depth that discharge over 50% for a business day. This basically uses to battery applications where the average depth the discharge falls listed below 50% in a day, and the battery have the right to be fully recharged once during a 24 hour period, together in an industrial application. This is called "opportunity charging".

Equalization

Equalization is essentially a managed over charge. Part charger manufacturers contact the optimal voltage the charger attains in ~ the end of the bulk mode (absorption voltage) an equalization voltage, yet technically it"s not. Higher capacity wet (flooded) batteries sometimes benefit from this procedure, particularly the physically tall batteries. The electrolyte in a wet battery can stratify end time, if no cycled occasionally. In equalization, the voltage is lugged up over typical peak charging voltage (to 15 come 16 volts in a 12 volt charger) well right into the gassing stage, and also held for a resolved (but limited) period. This stirs increase the chemistry in the entire battery, "equalizing" the toughness of the electrolyte, and also knocking off any loosened sulphation that may be ~ above the plates.

The building of the sealed battery (AGM and also Gel), all yet eliminates any kind of stratification, and also most all manufacturers of this form do no recommend it (advising versus it). Some manufacturers (notably Concorde) list a procedure, however observing voltage and also time specifications are an important to avoid battery damage.

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36 Volt Charger Sizes

A 36 volt charger deserve to be had from a low milliamp output (200, 500 milliamps), approximately 25 amps, that will certainly plug into a 115 volt wall outlet. Several of the smaller sized units space unregulated, and also simply have actually a resolved voltage output, favor the chargers the old. These often tend to take much longer to charge, and also should it is in avoided once possible. Smaller sized amp capacities are ideal for smaller batteries, like electronic and security form applications or kid scooters in the 1.3 to 12 amp hour range. They likewise can be provided for maintenance on bigger batteries. A medium amp output 36 volt charger would be in the variety of 10 come 15 amps or so, and be offered for plenty of applications using around 100 amp hrs of battery and up, or applications v a consistent amp load (power it is provided application). For a strength supply kind situation, the consistent draw need to be a low percentage of the charger preferably amp capacity, to keep the charger native going ago into the an increase or bulk stage. Larger units in the 36 volt charger models are about 20 to 25 amps output (except commercial, 220 VAC entry types, or 3 phase). These are offered in large amp hour battery banks, or applications desiring quicker recharge times. Periodically the bigger units are used where a generator is the AC power source, and generator operation time is a consideration.

most battery manufacturers recommend sizing the charger at around 25% that the battery capacity (ah = amp hour capacity). Thus, a 100 ah 36 volt battery load would take around a 25 amp 36 volt charger (or less). Larger chargers might be supplied to decrease fee time, however may decrease battery life. Smaller sized chargers are fine for long term floating, e.g. A 2 or 4 amp "smart charger" deserve to be offered for battery maintain between greater amp bicycle use, yet would be inefficient or burn increase if used to mass charge big capacity, deeply discharged batteries.

For more information, or 36 volt charger application particular recommendations, email united state or speak to the technology line.