24 Volt U1 Battery Pack for the Drive Medical Sunfire Plus GT (SPGT-3C)

If it has become time to replace the batteries in your Drive Medical Sunfire Plus GT (SPGT-3C), Monster Scooter Parts can help with the very best batteries available. We offer two U1 battery pack choices - Absorbed Glass Mat (AGM) or gel. Our AGM batteries offer a capacity of 35 Ah while our gel batteries offer a 32 Ah capacity. U1 battery packs consist of two 12 volt batteries which together provide 24 volts of power to your Drive Sunfire Plus GT power chair.

Either of these superb battery packs offer a one-year warranty and will meet or exceed your original equipment Drive Medical battery pack specifications.

AGM Batteries

• Acid is absorbed by a very fine fiberglass mat, making the battery spill-proof. This enables shipment via air or ground without hazardous material restrictions.
• Higher capacity (35 Ah) compared to gel batteries (32 Ah) of the same physical size.
• Less expensive and more popular than gel batteries.
• Lower life span compared to gel batteries when batteries are regularly deep-discharged between charges. Life span is greatly improved if batteries are recharged before reaching 50% discharge.
• Safe for airline travel.
• Maintenance-free.
• Can be installed upright or on their side.
• One-year warranty.

Gel Batteries

• Acid is "gelled" by the addition of Silica Gel, turning the acid into a solid mass that looks like gooey Jell-O and making the battery spill-proof. This enables shipment via air or ground without hazardous material restrictions.
• Lower capacity (32 Ah) compared to AGM batteries (35 Ah) of the same physical size.
• More expensive than AGM batteries.
• Superior life span compared to AGM batteries when batteries are regularly deep-discharged between charges.
• Safe for airline travel.
• Maintenance-free.
• Can be installed upright or on their side.
• One-year warranty.

Both of these Universal Battery packs use what are known as U1 batteries. Note that the U1 designation refers only to a common universal physical dimension, and the name can apply to both AGM and Gel types. The ubiquitous U1 is currently the most common size of power chair and mobility scooter battery. Whether you choose the AGM or the Gel type U1 battery pack, you can rest assured of top-quality replacement batteries, and both packs are backed by a one year warranty. At Monster Scooter Parts, we want to be your go-to source for the very best replacement Drive Medical parts and accessories.

Break-in time for gel batteries
New gel batteries will perform better after a break-in period of between 15 and 20 cycles (discharged and then recharged). If you recharge your scooter or power chair's battery every night, this break-in period should last about two to three weeks before your gel batteries become activated to their full power potential.

In addition, gel batteries should always be recharged by way of a battery charger that has been optimized for gel-batteries.

Why buy replacement Drive Medical batteries from Monster Scooter Parts?
Monster Scooter Parts sells high-quality Absorbed Glass Mat (AGM) and gel batteries at affordable prices. Our battery packs use batteries from Universal Power Group (UPG), one of the leading providers of battery and power related products in the United States for over 40 years. Based in Coppell, TX, UPG supplies OEM sealed lead acid batteries in critical applications such as medical mobility devices and equipment. You can be assured that the batteries we sell are of a higher quality than the knock-off or off-brand batteries sold by Amazon dealers and eBay sellers. All of our battery packs are backed by a one year warranty. Compare our scooter battery packs to the lower quality batteries sold by our competition and you will easily understand why Monster Scooter Parts is your source for mobility parts and accessories.

Universal Power Group (UPG): AB12350 (AGM), D5870 (Gel)

Style: AGM - Absorbent Glass Mat
Pack: Two UPG 35 Ah, 12 Volt U1 AGM batteries
Voltage: 12 Volts each battery, 24 Volts total
Amp Hour: 35 Ah
Length: 7.70" (per battery)
Width: 5.12" (per battery)
Height: 7.01" (per battery)
Weight: 25 lb. (per battery), 50 lb for the set of two
Hardware Kit: Not Required
Warranty: 1 Year Full Replacement Warranty

Style: Gel
Pack: Two UPG 32 Ah, 12 Volt U1 GEL batteries
Voltage: 12 Volts (per battery), 24 Volts total
Terminal type: L
Amp Hour: 32 Ah
Length: 7.56" (per battery)
Width: 5.20" (per battery)
Height: 6.61" (per battery)
Weight: 23 lb. (per battery), 46 lb. for the set of two
Warranty: 1 Year Full Replacement Warranty