In order to balance the cells with your charger, however, the balance wires of all of the batteries must also all be connected in order to put the individual cells in parallel with each other. Now, the entire battery packs are in parallel. Parallel charging means that you plug many LiPo batteries into each other via a special board or harness so that all of their negative leads are connected to each other, and all of their positive leads are connected to each other. A battery chemistry capable of being charged via the CC/CV technique is a must for parallel charging to be safe and effective. Do NOT attempt to use this technique with NiCad/NiMH batteries, etc., as they use a peak voltage (ΔV) detection charge technique rather than a constant current/constant voltage (CC/CV) charge technique. So, let’s get started.įirst off, parallel charging can be done with LiPo, LiFe, or Li-Ion batteries ONLY. With the right harness, even a cheap $5 2-3S LiPo charger can do parallel charging! (However, this is less useful since these low-power chargers don’t have enough power to maintain a 1C charge rate anyway). I am always recommending to people that they use parallel charging, as it allows any single port LiPo charger to charge many batteries at once instead of just one battery at once. This charging technique has been around for probably 6 years, and is very effective and safe when done right, so I have to assume that most local hobby shops are either A) completely oblivious about parallel charging, B) do not want to promote it because it is better for them to sell another charger rather than a parallel charge board (ie: they’ll make more money selling another charger), or C) they secretly use this technique at home but simply don’t want to be responsible for user error if a customer destroys their equipment or property if they don’t know what they’re doing while attempting it.ĭespite this, I am a strong proponent of parallel charging and have used it nearly every charge I’ve ever done since I discovered it in the early part of 2011. One thing that annoys me very much about virtually all local hobby shops is that as of today,, I haven’t found a single one that uses parallel charging or sells parallel charging equipment yet, and yet I’ve been into about 12 local shops in the past few years and looked specifically for parallel charge equipment. For example, if you plug a 2S battery in with a 3S battery, the 2S battery will be destroyed and catch fire if you leave it there. However, YOU MUST KNOW WHAT YOU ARE DOING OR PARALLEL CHARGING IS DANGEROUS. The board by itself is designed for only up to 6 batteries at once, so I added a couple parallel harnesses to get 8. If you use Deans connectors, use this board instead. I use this charge board (shown above) plus a couple other parallel adapters I plug into it. All at once-boom, done! No more messing around buying many chargers or setting up the charger many times to charge multiple batteries. Essentially, parallel charging allows you to plug in many batteries at once, into one port in a single charger, and, if your charger is powerful enough, charge them all in ~1 hour or less. I use a Triton 2 EQ 100W balance charger ) to regularly charge up to 8 2S 500-1000 mAh packs simultaneously, all in just over 1 hour! I also regularly charge 3S LiPos and micro 1S Lipos (I’ve done up to 14 of those at once) simultaneously using that one, single-port charger.
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