3S 40A BMS 12.6V Lithium Battery Charger Protection Board - Balanced
3S 40A BMS 12.6V Lithium Battery Charger Protection Board - Balanced is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Delivery Options
We offer several delivery choices to fit your needs:
- FREE Delivery: $0. Enjoy Free AusPost Parcel Standard Delivery on orders over $100 in value. Exclusions may apply.
- AusPost Untracked Letter: $3. Delivery in 3-8 business days (untracked). No refunds or replacements without proof of receiving the order.
- AusPost Parcel Standard: $9. Tracked delivery in 2-6 business days.
- AusPost Parcel Express: $13. Express tracked delivery in 1-3 business days.
- Pickup: $0. Email us to arrange a pickup from our location in Huntingdale 3166 in Melbourne at support@zaitronics.com.au. More details can be found in our contact page.
Additional Information
- Non-metro addresses in WA, NT, SA & TAS may require extra time.
- Certain batteries (like LiPo) cannot be shipped by air, affecting Express Post availability.
- We recommend selecting tracked options for valuable items. Untracked orders will not receive tracking numbers or refunds without proof of delivery.
- Note: Wherever possible, we will combine orders to save on shipping and reduce packaging waste.
- Note: Orders containing backordered item will delay delivery until all items are available
Warranty & Refund Policy
Warranty & Refund Policy
Warranty & Refund Policy
- Standard Warranty: 12 months for all products. Low-cost hobby parts have a 90-day warranty unless safe handling is shown.
- Exceptions: Kits and interfaceable electronics may not be covered if damaged due to misuse.
- Returns: Contact support via your order confirmation email within 14 days of purchase. Items must be unopened and in original packaging. Proof of purchase is required.
- Defective/Damaged Items: Notify us within 30 days for a free refund or replacement. Exclusions apply.
- Return Shipping Costs: Paid by the customer unless the item is defective. Shipping costs are non-refundable.
3S 40A BMS 12.6V Lithium Battery Charger Protection Board - Balanced
The 3S 40A Balanced BMS is a high-performance battery management system designed for lithium battery packs built from 3.7V nominal cells such as 18650, 26650, and lithium polymer batteries. It supports 3-cell series (3S) configurations, delivering a fully charged pack voltage of 12.6V.
This balanced version features active cell balancing, which equalizes the charge level of each cell during charging. This helps improve pack performance, prevent cell overstrain, and extend overall battery life.
Key Features:
- Supports 3S (3-cell series) lithium battery packs
- Continuous Discharge Current: Up to 40A
- Balanced Charging: Equalizes cell voltages to maintain consistent capacity and improve cycle life
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Protection Functions:
- Overcharge protection
- Over-discharge protection
- Overcurrent protection
- Short-circuit protection
- Automatic Recovery: Resumes normal operation after fault conditions clear
- Typical Applications: E-bikes, power tools, solar energy storage, DIY battery packs
Technical Specifications:
- Nominal Cell Voltage: 3.7V
- Charging Voltage: 12.6V (for 3S packs)
- Balanced Current: ~30–60mA (varies by model)
- Size: Compact and easy to integrate
The balanced BMS is ideal for battery packs that undergo frequent use or deep cycles, helping to ensure cell health and system stability over time.