# Booster car seat expiry: what the checked facts say How long can a booster car seat be used before it expires? None of the checked facts gives an expiry date or a usable lifespan for these booster seats\. The closest facts describe use ranges and warranty terms: Cybex Solution G2: It is approved to UN R129/04 \(i\-Size\) for stature height 100\-150 cm, used forward\-facing; the maker's US web page instead gives 43\.3\-60 inches, so the sources disagree on the height range\. Britax Highpoint 2\-Stage: This 2\-in\-1 seat converts from a high\-back booster for 40\-120 lbs / 44\-63 inches to a backless booster for 48\-120 lbs / 46\-63 inches\. Axkid Up: The store's own listing says the Axkid Up is a high\-back booster seat for children about 4 to 12 years old, 40 to 120 lb and 43\.3 to 60 inches tall; Axkid's own page gives different limits \(100–150 cm and up to 50 kg\), so the two sources disagree\. ### 1. [Cybex Solution G2](/products/ucp/albeebaby-com/9564462547175) (sold by albeebaby\.com) It is approved to UN R129/04 \(i\-Size\) for stature height 100\-150 cm, used forward\-facing; the maker's US web page instead gives 43\.3\-60 inches, so the sources disagree on the height range\. - Use range: It is approved to UN R129/04 \(i\-Size\) for stature height 100\-150 cm, used forward\-facing; the maker's US web page instead gives 43\.3\-60 inches, so the sources disagree on the height range\. (manual) - Warranty: Open\-box purchases carry a 1\-year manufacturer's warranty and are final sale, not eligible for return or exchange\. (guide) ### 2. [Britax Highpoint 2\-Stage](/products/ucp/albeebaby-com/9564460155111) (sold by albeebaby\.com) This 2\-in\-1 seat converts from a high\-back booster for 40\-120 lbs / 44\-63 inches to a backless booster for 48\-120 lbs / 46\-63 inches\. - Use range: This 2\-in\-1 seat converts from a high\-back booster for 40\-120 lbs / 44\-63 inches to a backless booster for 48\-120 lbs / 46\-63 inches\. (guide) - Warranty: - ### 3. [Axkid Up](/products/ucp/albeebaby-com/9722100842727) (sold by albeebaby\.com) The store's own listing says the Axkid Up is a high\-back booster seat for children about 4 to 12 years old, 40 to 120 lb and 43\.3 to 60 inches tall; Axkid's own page gives different limits \(100–150 cm and up to 50 kg\), so the two sources disagree\. - Use range: The store's own listing says the Axkid Up is a high\-back booster seat for children about 4 to 12 years old, 40 to 120 lb and 43\.3 to 60 inches tall; Axkid's own page gives different limits \(100–150 cm and up to 50 kg\), so the two sources disagree\. (listing) - Warranty: - Every value in the table is a fact RoboTrunk checked, linked to the page it came from\. A dash means no checked fact fills that cell\. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live\. Written 2026-10-10T04:59:04.387Z. This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. Where the rest of this site is: - /agent/story.md is what RoboTrunk is and how it works, in full. - /agent/tools.json is every tool, its arguments and its answers. - /agent/merchants is every store you can buy from through RoboTrunk. - /products/ucp is every store's indexed products. - /products/search is one search across every store, in plain words. - [What RoboTrunk is](/agent/story.md) - [Every tool, in your browser through WebMCP](/agent) - [The tools and how to call them](/agent/tools.json) - [The stores you can buy from](/agent/merchants) - [Every store's products](/products/ucp) - [Search every store at once](/products/search)