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If you want a replacement charging case for your AirPods 4 that focuses on battery capacity and a clean, simple pairing routine, choose Yitonglian Charger Case Replacement; if you need a replacement case for AirPods Pro 3 with both wireless and wired charging plus built-in safety protection, choose Baiyx Replacement Charging Case.
• Yitonglian's biggest strength: A 450mAh battery that the spec sheet says delivers up to 3 additional full charges for your earbuds, plus a fast top-up to 100% in roughly 30 minutes and a full case recharge in about 2.5 hours.
• Yitonglian's biggest trade-off: It is locked to the AirPods 4 generation only. If you own any other model, it simply will not fit.
• Baiyx's biggest strength: It supports wireless charging as well as wired USB-C input, and adds a smart protection chip against over-charging, over-heating and short circuits.
• Baiyx's biggest trade-off: It is built strictly for AirPods Pro 3 (2025), so AirPods 4 owners are out of luck, and the earbuds are not included.
• Who Yitonglian is for: AirPods 4 owners who want a dependable spare case with a large battery and want to keep things simple.
• Who Baiyx is for: AirPods Pro 3 owners who want the convenience of drop-and-charge wireless charging and a case that guards the earbuds with added safety electronics.
The Yitonglian case is a direct replacement for the charging case that comes with AirPods 4. It is built around one clear idea: keep your earbuds running for as long as possible. Inside is a 450mAh battery, and the spec sheet states it provides up to 3 additional full charges for your earbuds. That means you can head out for a weekend trip without packing a wall charger and still keep listening. It also claims a quick top-up that takes your earbuds to 100% in about 30 minutes, so a short stop near a socket is enough to get you through the rest of the day. A full recharge of the case itself takes around 2.5 hours.
Pairing is handled with a single button press. Once you press it, the case activates Bluetooth pairing and your phone should recognize the case and show its battery status. There is also an LED indicator on the case so you can see how much charge is left before you commit to a long day out. The form factor is a hard plastic shell in white, which matches the look most people expect from an AirPods case.
Baiyx Replacement Charging Case: Who It's For
The Baiyx case takes a different angle. It is made for AirPods Pro 3 (2025) owners, specifically models A3065, A3063 and A3064. Its headline feature is flexibility in how you charge: it supports both wireless charging and wired USB-C input. That matters in daily life. If you already have a wireless charging pad on your desk or nightstand, you can just drop the case on it. If you are traveling and only have a cable, that works too. That kind of dual-path charging is the sort of thing you only appreciate once you have owned a case that forces you into one method.
The battery side is solid as well. Baiyx says the case fully charges your earbuds in about 30 minutes and recharges itself in roughly 2 hours, and it provides up to 3 full charge cycles. That is in the same practical ballpark as the Yitonglian, which makes sense for a case of this size.
Where Baiyx pulls ahead is protection. There is a built-in chip that guards against over-charging, over-heating and short circuits, along with protection against overvoltage, overcurrent and overload. If you mostly charge overnight, that layer of safety is a real comfort. The shell is made from high-quality ABS plastic that the description calls odorless, scratch-resistant, shockproof and non-slip, designed to shield your earbuds from bumps, drops and impacts. There is an LED indicator for power level and a Bluetooth sync button for one-tap pairing with your original earbuds. Baiyx also lists a 180-day warranty description, which is worth knowing about before you buy.
Who should buy it? AirPods Pro 3 owners who want a replacement case that can charge wirelessly, protect the earbuds, and pair without fuss. Who should skip it? Anyone with AirPods 1, 2, 3, or 4, or with Pro 1 or Pro 2. This case will not work for those, and the brand is explicit about that in its compatibility note.
Side-by-Side: Which Should You Choose?
• Best for AirPods 4 owners → Yitonglian Charger Case Replacement. It is the only one of the two that fits the 4th generation.
• Best for AirPods Pro 3 owners → Baiyx Replacement Charging Case. Built specifically for models A3065, A3063 and A3064.
• Best for charging flexibility → Baiyx Replacement Charging Case, which supports both wireless and wired USB-C charging.
• Best for peace of mind while charging → Baiyx Replacement Charging Case, thanks to its built-in protection chip against over-charging, over-heating and short circuits.
• Best for a quick earbud top-up → Either one. Both claim roughly 30 minutes to fully charge the earbuds.
• Best for a straightforward, no-frills replacement → Yitonglian Charger Case Replacement. One button, one LED, one job.
• Best for durability against knocks and drops → Baiyx Replacement Charging Case, based on its shockproof, non-slip ABS shell description.
In my opinion, the right pick comes down almost entirely to which earbuds you own, because these two cases do not overlap at all on compatibility. If you have AirPods 4, I would buy the Yitonglian Charger Case Replacement. The 450mAh battery, the 2.5-hour case recharge and the up-to-3-extra-charges figure make it a genuinely useful backup rather than a bare-minimum shell. If you have AirPods Pro 3, I would buy the Baiyx Replacement Charging Case. Wireless charging plus a safety chip plus a shockproof shell is a stronger overall package for daily wear. Check your model number before ordering, and check the current price on Amazon before you commit.
No. Yitonglian states it is only for AirPods 4th generation, covering models A3053, A3050, A3054, A3056, A3055 and A3057. It is not compatible with 1st, 2nd, 3rd generation or Pro models. If you own AirPods Pro 3, the Baiyx case is the one to look at instead.
Yes. Unlike the Yitonglian, which is described as a USB-C charging case, the Baiyx case supports both wireless charging and wired USB-C input. That gives you the option to drop it on a charging pad or plug it in with a cable, whichever is more convenient at the time.
Which case has the better battery life for travel?
No. Both are charging cases only, and earbuds are not included. You pair them with the earbuds you already own using the pairing button on each case. Yitonglian uses a one-touch Bluetooth pairing button, and Baiyx uses a one-tap sync button that connects to your original earbuds.
Baiyx is more explicit here. It lists a built-in chip guarding against over-charging, over-heating, short circuits, overvoltage, overcurrent and overload, plus an ABS shell described as shockproof and non-slip. Yitonglian's sheet focuses on battery capacity, pairing and the LED indicator rather than protective electronics. If safety electronics and impact protection matter most to you, I would lean Baiyx.
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