Rechargeable Battery Pack for X-box Series X|S/ One, 2 Pack 4440mWh 3.7V Battery Pack for X-box One/One S/One X/One Elite All X-box Controllers Supports Use While Charging (Includes 2 Batteries Only)

The battery pack fits right in the controller. Getting two of them for that price is amazing. It is compatible with the old Xbox One controllers as well as the new Xbox series S/X controllers.

The only thing I regret is not order anymore I can't wait

Good battery

Got two for about $10 and been using for about 4 months now. Going strong! I usually would charge it for 4-5 hours via usb c and my controller would last at least 4-5 days of consistent gameplay daily.

Don’t buy them! They can damage your controller!If the batteries are 3.7V and 4440mWh, you can calculate their mAh rating like this:This means they have about 1200mAh capacity, which is lower than standard AA rechargeable batteries (like Eneloop Pro at 2550mAh).Potential Issues with 3.7V Batteries in an Xbox Controller1. Too High Voltage:• Xbox controllers are designed for 1.5V (alkaline) or 1.2V (NiMH) batteries.• A 3.7V battery is more than double that, which could damage the controller or cause unpredictable behavior.2. Battery Size and Fit:• If these are Lithium-ion 3.7V cells, they might not physically fit in the battery compartment.• Most Xbox-compatible rechargeable batteries are designed to stay within safe voltage limits.Recommendation:DO NOT use 3.7V batteries in your Xbox One S controller. They are not designed for that voltage and could cause damage.Instead, stick with:• 1.2V NiMH rechargeable AA batteries (like Eneloop Pro, Amazon Basics, or Duracell Rechargeable)• Official Xbox Play & Charge Kit (which has a safe built-in battery pack)• 1.5V rechargeable lithium AA batteries (which mimic standard alkaline batteries safely)If you’re looking for long-lasting batteries, I’d recommend high-capacity NiMH AA rechargeables over the 3.7V option.

My father and girlfriend loved receiving these they work great and hold charge for a long time they fit well in the series controllers and can be charged via usb c through the controller which is a nice touch since typically these batteries need to be charged outside of the controller. It also comes with two so you can just swap them whenever.

Battery life for this is excellent! Fits very well in my Microsoft branded controller. I would say this works as advertised as me and my son both use one of these batteries.

battery last a long time but the battery level is not accurate on my xbox