Key benefits Precise cell balancing: Balance current adjustable from 0 to 5.5 A — the closer the cells are to equal voltage, the lower the balancing current, for fast and accurate balancing when needed. Low standby draw: Manual sleep switch minimizes quiescent current so the board consumes very little power when idle. High accuracy: Compensation voltage accuracy within 5 mV for consistent, repeatable balance behavior. Efficient power handling: New MOSFET circuit board built on 2 oz copper for extremely low internal resistance and improved thermal and current performance. Reliable charge transfer: On-board capacitor works with the transfer-charge slider so balancing starts automatically when the balance board is connected to the battery and the slider is set. Key features Balance current range: 0–5.5 A; current tapers as cells equalize. Low-current mode: <0.1 mA current mode for minimal parasitic drain. Compensation accuracy: within 5 mV. Circuit construction: MOSFET-based board with 2 oz copper thickness for low resistance and robust current flow. Controls: Manual sleep switch to place the board into a low-quiescent state. Balance start operation: Capacitor and transfer-charge slider coordinate so balancing begins as soon as the balance board is connected and the slider engaged. How this solves problems Prevents cell imbalance that shortens pack life by delivering controlled, high-current balancing when required and tapering as cells converge. Reduces idle battery drain during storage or transport using the manual sleep switch and low-current mode. Improves reliability and heat management during heavy balancing loads thanks to thick copper traces and MOSFET switching. Ensures consistent voltage compensation to avoid over- or under-balancing with high accuracy (±5 mV). Practical attributes Function: DC battery balance module with adjustable high-current capability and low-power standby. Material/performance: MOSFET circuit board with 2 oz copper for low internal resistance and efficient current flow. Controls: Manual sleep switch and transfer-charge slider with supporting capacitor for controlled start of balancing. Power behavior: High balancing current when needed, drops as cells balance; low-current mode below 0.1 mA for minimal drain. Use scenarios Hobby battery packs: Use during charging and maintenance of multi-cell battery packs to equalize cell voltages quickly and efficiently before storage or flight. Workshop/bench maintenance: Connect the balance board to battery packs for diagnostics and reconditioning; switch to sleep mode when testing is complete to avoid unnecessary drain. Field charging/repair: When servicing packs on-site, use the high-current balancing capability to correct large imbalances, then engage sleep mode to preserve remaining charge. What to expect when using the product Connect the balance board to the battery; set the transfer-charge slider to the required position; the capacitor-assisted circuit initiates balancing. Balancing current will operate up to 5.5 A when needed and decrease as cell voltages converge. Use the manual sleep switch to reduce quiescent current and prevent idle drain when balancing is not required. Note: Follow safe handling and connection procedures for battery balancing and verify compatibility with your specific battery pack and charger setup before use.