Instead of having to buy another, why not get one now that has a higher limit? Also be careful with the fisher price. They stopped making them, so the date of manufacture will likely be fairly old (last one I saw was 4/2007), so call the place and ask before purchasing it.
Here are some
convertible seats that I usually recommend based on how long you can keep your child harnessed...the longer the better!!!
1--
Britax Marathon/
Boulevard/
Decathlon. All these seats will
RF to 33lbs (as of 12/31/07, they are going to
RF to 35lbs) and then
FF, IN A HARNESS to 65lbs. These seats run $200-$300. There are small differences between them. The
Marathon is the basic model of the 65lb
convertibles with a lift lever harness release--with quite a few different covers to choose from! The
Boulevard has "wings" called True Side Impact Protection. It also has a harness adjustor that will move the harness without having to uninstall the seat. It is about 1/2" shorter than the
Marathon and the
Decathlon. The
Decathlon has extra padding--the infant insert--and a push button harness release.
Britax : Safe for a reason
2--Evenflo Triumph ADVANCE--harness to 35lbs
RFing and 50lbs
FFing. It has the infinite harness adjustor (no slots), so you can easily lift two red tabs and move them. This seat runs $129-$159, depending on which model. The higher end model, the premier, has more padding.
Toys"R"Us/Babies"R"Us
3--
Compass TrueFit---BRAND NEW and was supposed to be released Jan 15. It will
RF to 33lbs (with the headrest on and 22lbs without the headrest on) and
FF to 65lbs. Not a lot of information out on this seat, but I anticipate it to be a really nice one! Runs about $179-$189. They have several covers available.
Amazon.com: The First Years True Fit Convertible...
4--Fisher Price Safe Voyage Deluxe--Made by
Britax, but has been discontinued due to low sales, so you will likely get an older date of manufacture. Harness to 33lbs
RF and 55lbs
FF. The only place I have seen it is at this website runs $129. It just doesn't have all the 'bells and whistles' that the
Britax seats have.
Fisher Price Safe Voyage Deluxe Convertible Car Seat in Black
5--
Sunshine Kids Radian 65 or 80--These seats will
RF to 33lbs and
FF to either 65lbs or 80lbs, depending on the seat. These are the narrowest seats on the market, but have the highest incompatability with vehicles due to the low
FF belt path. Runs $180-$300.
Sunshine Kids Juvenile Products
6--
Recaro Signo or
Como--
RF to 35lbs and
FF to 70lbs. These seats come in a variety of microfiber covers. They have true side impact protection, but the
Como is VERY oddly shaped. The shoulder area is 9" of space and the butt area is 11" of space, so unless you have a tall beanpole, this seat may be awkward for some children. I haven't played with the
Signo, so I don't know the measurements off the top of my head. They are supposed to go to 59 or 60" tall---I dont' see it. Runs $250.
.: RECARO :.
Most of these seats have a higher sticker price on them, BUT the seats that have the 40lbs harness limits, that are less expensive, usually only harness the child to maybe age 3-4. AT that age, MOST children are not ready to go into a
booster. Bare minimum safety standards say that you can put a 4 year old AND 40lbs child in one, BUT being in a harness is MUCH safer....not just for children, but adults as well.