TECH Signal 359
Nimble SharePower review: 10,000mAh battery pack splits into two 5,000mAh halves
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Engadget reviewed the Nimble SharePower, a battery pack that separates magnetically into two independent 5,000mAh power banks, each capable of 20W output, with a combined 35W across three USB-C ports when intact.
For engineers who travel with multiple devices, the SharePower offers a single-pack solution that splits for parallel charging without carrying two separate power banks. The magnetic join and pogo-pin auto-balancing are the notable design choices, but the weak magnet and hardwired cable are real durability tradeoffs worth weighing.
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The SharePower is a 10,000mAh pack that splits into two 5,000mAh halves, each delivering up to 20W, with 35W total output across three USB-C ports when combined.
Pogo pins inside the magnetic connector equalize charge between the two halves when rejoined, so neither side is depleted unevenly after separate use.
Engadget rated it 8.6/10 but flagged that the magnetic connection detaches too easily and the built-in cable is prone to unrecoverable damage.
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The Nimble SharePower's core innovation is mechanical: a single 10,000mAh battery pack that twists apart into two 5,000mAh halves, each a standalone power bank with its own USB-C port and charge indicator. When joined, the two halves share a combined 35W output across three USB-C ports; when separated, each half delivers up to 20W. This is a genuinely different form factor from carrying two independent packs, and the pogo-pin auto-balancing means rejoining the halves equalizes charge so neither side is shortchanged next time.
The tradeoffs are concrete. Engadget found the magnetic connection too weak, a shake can drop one half off, which undermines the "twist and go" premise. The built-in cable that doubles as a carrying strap is hardwired, so if it frays from strap use, it is not easily repaired. The reviewer also noted the pack is pricier than a basic power bank, though no specific price was given.
On charging behavior, there is a nuance worth noting: the 35W total output is only achieved when multiple devices are connected. With a single device, the pack tops out at 20W, meaning you never get the full 35W to one gadget. This is a deliberate design choice that keeps output stable when charging two devices simultaneously, but it limits peak speed for single-device fast charging.
Only one feed carried this story, so there is no independent corroboration of the performance claims or the durability concerns. The review is detailed and hands-on, but engineers evaluating this for purchase should treat the 35W figure and the auto-balancing behavior as single-source claims until tested independently.
The physical specs are compact: 3.1 x 2.8 x 1 inches and 7.6 ounces, roughly deck-of-cards sized, with a shell made from 100 percent recycled plastic. For someone deciding whether to carry one SharePower versus two small power banks, the size and weight savings are marginal but real, and the auto-balancing is a feature standalone packs cannot match.
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