Yiko via Amazon is offering $40 iPhone Xs Max battery case for just $20 after you apply a promotional code at checkout RMXH3O3E.
The Techkey 6000mAh battery case offers your iPhone more than 180% extra backup so you never have to worry about running out of charge.
- More Than 180% Extra Power–ZTESY battery case with powerful 6000mAh capacity for iPhone XS Max helps keep your phone charged the entire day. ONLY FOR 6.5 INCH MODEL.
- 360°scratch-guard–ZTESY High-quality battery cases with the dual layer to protect your iPhone XS Max from scratches and daily wear and tear.LED indicator will show how much juice is left.
- 100% compatible with all iOS versions–Approved by Apple to work with all functions of your iPhone XS Max charging case. This battery case has the highest industry regulatory certificates: CE, RoHS, and FCC.
- 100% safety–Stop wasting your money on cheaply made charging stations which might ruin your phone! This case has fast charger station offers temperature rise, over-current, short circuit, over-voltage, over-load, electromagnetic, electrostatic and electric shock protection! Now, your iPhone XS Max, as well as you, are safe.
- 30-DAY MONEY-BACK GUARANTEE–Purchase with confidence! Life-Time ironclad warranty ensures you are protected for the life of this product, enabling you to return the product in case you don’t like your purchase for any reason.