8.4V NiMH Battery Pack 5800mAh (7x AA) – Ultra-High Capacity 3-Over-4 T-Type Staggered Layout with SM or Tamiya Plug for RC Toys & DIY
Description
Massive 8.4V power packed into a compact, space-saving staggered configuration.
This 8.4V NiMH (Nickel-Metal Hydride) Battery Pack is constructed with seven premium high-capacity AA cells, delivering an impressive 5800mAh capacity for exceptionally extended runtime. Engineered in a unique 3-Over-4 (T-Type) staggered layout, it forms a compact block measuring approximately 56mm (L) x 49mm (W) x 28mm (H). NiMH chemistry is known for being eco-friendly, free from memory effect, and capable of providing stable power through hundreds of recharge cycles.
Customizable Connectors: To ensure maximum compatibility with your devices, this battery is available with two pre-wired plug options. Please select the correct plug type from the dropdown menu:
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Large Tamiya Plug : Standard large white connector for RC cars.
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SM Plug: Standard 2-pin connector, widely used in RC toys.
Important Sizing Note: The physical dimensions of this T-type pack are approx. 56x49x28mm. This specific staggered layout is designed for tight or uniquely shaped battery compartments. Please carefully measure your device's battery compartment to ensure proper fitment before ordering. (Red wire = Positive +, Black wire = Negative -).
【Key Features】
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8.4V & 5800mAh Capacity: Ultra-high capacity provides exceptionally long runtime for your devices, minimizing frequent recharging.
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Premium NiMH Chemistry: Rechargeable, eco-friendly, and free from memory effect.
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Compact 3-Over-4 T-Type Layout: Seven AA cells arranged with three on top and four on the bottom, creating a space-saving block.
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2 Plug Options: Choose from Large Tamiya or SM plugs to match your device.
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Versatile Compatibility: Ideal for RC toys, remote controllers, and DIY projects with limited battery space.
【Parameters】
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Battery Type: NiMH (Nickel-Metal Hydride)
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Nominal Voltage: 8.4V (7 cells in series)
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Nominal Capacity: 5800mAh
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Cell Size: AA
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Configuration: 7-Cell, 3-Over-4 (T-Type)
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Connector Options: SM Plug / Large Tamiya Plug
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Wiring: Red (+), Black (-)
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Dimensions: Approx. 56mm (L) x 49mm (W) x 28mm (H)
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Weight: Approx. 180g
【Applications】
Recommended For:
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RC Toys & Cars: Direct replacement for specific RC vehicles with tight, staggered battery bays, providing long-lasting power.
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DIY Electronics: Custom projects requiring a stable 8.4V power source in a compact shape.
Not Recommended For:
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Extreme High-Drain Devices: Not suitable for high-power tools requiring Li-ion or LiPo batteries.
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Devices Requiring Unlisted Plugs: Ensure your device uses an SM or Large Tamiya plug.
【FAQ】
Q1: Does this battery pack come with a charger?
A: No, the charger is not included. You will need a dedicated NiMH charger compatible with 8.4V packs.
Q2: How do I know which plug to choose?
A: Please look at the plug of your original battery or the socket on your device. Compare it with the plug images in our product gallery. If you are unsure, please contact our customer service with a photo.
Q3: How do I know if this T-Type layout will fit my device?
A: Please measure your battery compartment. This T-Type is a compact block (approx. 56x49x28mm) with a stepped shape. It will not fit standard flat 1-Row compartments. Compare it with your old battery before purchasing.
Q4: Is the red wire positive or negative?
A: The red wire is positive (+) and the black wire is negative (-). Ensure correct polarity when plugging it into your device.
Payment & Security
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Refund Policy
Last updated: November 3, 2026
Returns
Return eligibility depends on the items in your order.
Where returns are accepted, items must be returned in the same condition they were received, unworn or unused, with tags, and in their original packaging or as otherwise indicated in the return instructions. We may reduce your refund if the item has been used, damaged, or handled more than necessary.
Contact us to ask about return options and how to start a return.
How to start a return
Whether return or cancellation requests are accepted depends on the terms above and your rights under applicable law.
Contact us before returning an item.
Unless we state otherwise or applicable law requires otherwise, you are responsible for return shipping costs for change-of-mind returns.
Damages and issues
Please inspect your order when you receive it and contact us immediately if an item is defective or damaged, or if you received the wrong item.
Exceptions and non-returnable items
Some items may not be eligible for return, as stated in the return terms above or on the product listing, website, or in-store at the time of purchase.
Contact us if you have questions about whether a specific item can be returned.
Exchanges
Contact us to ask about exchange options before returning your item.
Refunds
We will notify you after we receive and inspect your return and let you know whether the refund was approved. If approved, you will be refunded to your original payment method, unless otherwise stated. Your bank or payment provider may need additional time to process and post the refund.
If you do not see your refund within a reasonable period of time since your refund was approved, contact us.
This policy does not limit any rights you may have under applicable consumer protection laws, including rights that may apply if goods are defective, not as described, not delivered within the required or agreed timeframe, or otherwise do not comply with applicable law.
Contact
To request a cancellation, start a return, inquire about a return, ask about an exchange or report damaged items, please contact us at support@powerpackhub.com or use the contact details in our contact information policy.