3S 40A BMS 12.6V Lithium Battery Charger Protection Board - Enhanced
3S 40A BMS 12.6V Lithium Battery Charger Protection Board - Enhanced 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.
The 3S 40A Enhanced BMS is a lithium battery protection board designed for 3S (3-cell series) battery packs using 3.7V nominal lithium-ion cells, including 18650, 26650, and lithium polymer types. Built for high-drain applications, this version provides fast response protection and enhanced reliability under demanding load conditions.
Unlike the balanced version, this enhanced board prioritizes robust current handling and system protection without cell balancing functionality. It is suitable for applications with moderate to high power requirements where external balancing or matched cells are used.
Key Features:
- Supports 3S lithium battery packs (11.1V nominal, 12.6V max)
- Continuous Discharge Current: Up to 40A
- Surge/Start Current: Supports loads up to 80A (short duration)
- Power Support: Up to 130W total system output
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Protection Functions:
- Overcharge protection
- Over-discharge protection
- Overcurrent protection
- Short-circuit protection
- Automatic Recovery: Recovers from faults after conditions return to normal
- Compact Size: Approx. 41 x 55 x 3.4 mm
- Note: This version does not include active cell balancing
Applications:
Ideal for e-bikes, power tools, LED lighting systems, DIY power banks, and other medium-to-high load battery-powered systems that demand high current support and basic protection.