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Hang battery buddy12/13/2022 Has been the tendency of ‘smart’ chargers to incorrectly interpret the voltage sample taken from a near fullyĬharged 2 cell pack and falsely concluding that the pack is a discharged three cell pack. Accidentally charging a single cell (switch selector at cell 1 or cell 2) with theĬharger in 2S mode will kill that cell outright! One of the biggest historical ‘killers’ of 2 cell A123 Rx packs If single cell charging, check and VERIFY that the charger is in ‘1S’ mode. Ĭharger settings for cell count before starting a charge with a Balance Buddy in the circuit. #Hang battery buddy how toSee the notes on our A123 Setup Guide on how to do this.Ĭharger Setup, Things to look out for. ‘third wire’ from the plug on your switch that goes to the Rx. You can use any chargeport equipped HD switch, just remove the white or yellow order your pack with NO balance connectorĪnd WITH a 20g 3 Wire Combination Power Feed. Without that pesky balance charge adapter cable!! How to take advantage of this? Easy. Now, with any A123 capable charger and a Balance Buddy you can ‘Balance’ or ‘Equalize’ andĬheck the individual cell voltages with a standard ESV on your 2 cell A123 Rx pack via a modified Chargeport Your OEM type Univ (Fj/JR/Hitec) banana plug connection from the charger to the switch chargeport to perform a balance charge Then you’d need to make or purchase an adapterĬable that connected between your chargers balance board to the separate chargeport on the plane. #Hang battery buddy installUp till now, if you had anything other than an FMA single cable output charger you’d need to install a separateĬhargeport on your plane to get your charger to perform a balance charge. and we can now use just about anybody's A123 capableĬharger to get an equalized pack charge without two pack connectors or two connections to the charger. Independently in the event of a severe cell imbalance in the pack. None of the advantages of the FMA’s single lead connection and gain the ability to quickly access and charge each cell all balancing chargers are very slow in balance mode) The balance Buddy does the trick. Was it’s very slow charge rate when in balancing mode when the cells were significantly out of balance. The only issue we had with the FMA charger since it’s introduction We decided to accommodate the FMA chargers requirement for ‘throughput’ to the individual cells for fuel gaugingĪnd balancing using the chargers balance routine. This simple connection system to take advantage of FMA’s single cable chargers, eliminating the need (if you had anįMA Charger) for a separate chargeport on the aircraft to do balance charging in the plane. The charging connection would be done via a Modified ElectroDynamics HD Chargeport switch on the aircraft. Our A123 Balance Buddy, plug it into the packs Univ celltap or 3 wire Combo power feed, plug the charger into the Balanceīuddy and ‘Wallah’! You’ve got access to each cell independently orīoth cells together! To swipe a phrase from a beer commercial… “Brilliant!”Įasier… in the pic above, we’ve got a Combo three wire lead on the pack. Of specialized adapters out of short aileron extensions by moving around the pin contacts in the plugs or you can grab up Pack, how can you check and charge each cell independently? You’ve either got to build up a couple The cells for individual checks and charging and takes hours to ‘re-equalize’ or balance a severely out of balance Tell the charger you want to charge an A123 pack, you tell the charger how many cells are in the pack, you select a charge On the other hand, just about every single A123 capable charger can perform an unbalanced charge on your battery pack. ONE A123 capable charger can separate the cells in the pack for voltage checks, load checks or charging the cells independently.
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