Laptop batteries commonly have four 36v li ion cells in series to achieve a nominal voltage 144v and two in parallel to boost the capacity from 2400mah to 4800mah. If you have a wet cell battery are filling it for the first time and are using an old style battery charger non smart charger and short the terminals while you are filling it yes it is possible to hook up the charger backward and reverse charge it.
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Batteries in parallel problems. How to connect lithium batteries in parallel and series. Such a configuration is called 4s2p meaning four cells in series and two in parallel. Any battery that is low enough that the plates are exposed is a problem. If all the batteries or the majority are down it is simply time to add distilled water. If you connect rechargeable batteries in parallel and one is discharged while the others are charged the charged batteries will attempt to charge the discharged battery. Some packs may consist of a combination of series and parallel connections.
For secondary rechargeable batteries the stronger battery would charge the weaker one draining itself and wasting energy. Series connection increases battery voltageparellel connection increases battery capacity. Reversing the polarity on a battery can happen only a couple of ways. You can connect your load to one of the batteries and it will drain both equally. However once a month or so id switch out each battery and charge it individually on a smart charger such as a c tek to equalise the bank. Negative to negative and positive to positive.
Understanding about repairing batteries can assist you with this issue. To join batteries in parallel use a jumper wire to connect both the positive terminals and another jumper wire to connect both the negative terminals of both batteries to each other. Actually yes but not without help. If one battery is only down a little and the plates are all covered it is possible the battery is beginning to fail. Personally i would set the charging to the higher rate for the bank. Learn about adding water and good battery maintenance tips here.
3 conserves you trouble think about a circumstance when the existing battery you have goes down and you are in the middle of no place. Having three batteries in parallel does prove slightly more problematical when charging. Recondition batteries in parallel all you require to do is to follow these basic steps. With no resistance to slow this charging process the charged units can overheat as they rapidly drain and the discharged battery can overheat as it attempts to charge at well above its design.
Gallery of Batteries In Parallel Problems
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