ALLIED Big Box RS 48V 105Ah Lithium Golf Cart Battery Kit

The ALLIED Big Box RS 48V 105Ah Lithium Golf Cart Battery Kit swaps your lead-acid set for one LiFePO4 pack, with a 15A waterproof charger, a state-of-charge meter and a 10-year warranty in the box.

Why it made the list

A lithium conversion usually means buying a pack, a charger and a meter and hoping they all talk to each other. ALLIED sells them together. The Big Box RS pack is sized like a lead-acid set so it sits in the factory battery tray and uses the existing wiring, which is why the seller says most conversions take under 30 minutes.

It’s also the lowest-priced brand-name kit with a charger on our list, at $2,248.95 against a $2,799.99 list price, and it still carries a 10-year warranty. You get a known brand and a long warranty without paying Trojan money.

What it does well

• The included 15A waterproof lithium charger can sit outside the cart, and the seller quotes a full charge in about 3 hours.
• A state-of-charge meter and Bluetooth app show remaining charge and battery health, which is far more useful than the guesswork of a lead-acid gauge.
• The hardware pack includes 4-gauge cables, CAN BUS and RS485 cables, terminal protectors and fasteners.

Cart-specific setups are offered for the common models, plus a direct-to-battery option the seller says fits any cart.

Who it’s for

The seller recommends it for modified 2-seat and 4-seat carts and lifted carts with bigger wheels and tires, and the pack suits controllers up to 450A. If you’ve added a lift kit or a speed upgrade and your lead-acid set can’t keep up, this pack is built for that job.

Who should skip it

This is a 48V kit, so 36V carts need ALLIED’s 36V version. If you run a lot of 12V accessories like a stereo or light bar, budget for a voltage reducer, which is extra.

Key specs, explained

The 105Ah rating is capacity in amp-hours. At 48V that works out to about 5 kWh, and the seller estimates 30 to 45 miles per charge, depending on your cart and how you drive. LiFePO4 is the lithium chemistry used in most cart packs because it handles deep cycling well and stays stable. The pack measures 17.5 x 10.75 x 9.0 in, so check your tray if you have an unusual cart.

How it compares

The ECO Battery 48V 105Ah Thru-Hole Lithium Golf Cart Battery Kit costs a little more but adds a 110V receptacle and a dash wake-up button in the box. The Trojan OnePack 48V 105Ah Lithium Golf Cart Battery Kit costs about $750 more and claims more range, from a battery brand with a long cart history. ALLIED is the value pick of the three.

Good to know

Onboard charging needs the optional 110V receptacle, and 12V accessories need the optional voltage reducer; both cost extra. The kit lists setups for Club Car Tempo, Onward and Precedent, E-Z-GO TXT and RXV, and Yamaha Drive and Drive-2. Shipping is free. Check the warranty terms with the seller, since the listing doesn’t spell them out.

Questions about the ALLIED Big Box RS 48V 105Ah Lithium Golf Cart Battery Kit

Can I install it myself?

Yes, if you’re handy with a wrench. It fits the factory tray and uses the existing wiring, and installation instructions come in the kit.

Can I charge onboard?

Yes, with the optional 110V receptacle. Without it, you connect the 15A charger directly.