# Infant car seat base weight and child weight limits How much do infant car seat bases weigh, and what child weights do they support? Baby Trend EZ\-Lift™ Plus Infant Car Seat Base: The base weighs 5\.5 pounds\. Recommended use is for children weighing 4–30 pounds and measuring up to 29\.5 inches tall\. Baby Trend Ally™ 35 Infant Car Seat Base: The base weighs 6\.85 pounds\. ### 1. [Baby Trend EZ\-Lift™ Plus Infant Car Seat Base](/products/ucp/babytrend-com/6764788908113) (sold by babytrend\.com) Recommended use is for children weighing 4–30 pounds and measuring up to 29\.5 inches tall\. - Base weight: The base weighs 5\.5 pounds\. (guide) - Child weight limit: Recommended use is for children weighing 4–30 pounds and measuring up to 29\.5 inches tall\. (guide) ### 2. [Baby Trend Ally™ 35 Infant Car Seat Base](/products/ucp/babytrend-com/4313944227921) (sold by babytrend\.com) The base weighs 6\.85 pounds\. - Base weight: The base weighs 6\.85 pounds\. (guide) - Child weight limit: - 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 2026-10-09T06:55:18.348Z. 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)