Tiffin GH1/GH2 Additional & Replacement Battery Installations

Add a new lithium battery to your Tiffin GH1 or GH2 or replace an existing Battle Born battery bank that is reaching the end of its life.

When an Additional Tiffin Battery Makes Sense

Some owners want more capacity than the standard battery kit provides. The GH1 and GH2 offer a 540Ah Battle Born lithium-ion kit as standard and an 810Ah “Max Power” kit as an option.

• An additional battery or upgrade path makes sense when:
• Camping off-grid for several days at a time
• Running the air conditioner, induction cooktop, or high-draw appliances often
• Relying on the GH1 / GH2 as a working basecamp with laptops, Starlink, and gear charging
• Traveling in winter or low-sun locations where solar is limited

Increasing from 540Ah to 810Ah or beyond gives more usable energy for A/C, heating, cooking, and 120V loads.

When a Replacement Tiffin Battery Is Needed

Tiffin GH1 and GH2 vans ship with Battle Born lithium battery kits designed for serious off-grid use. Over time, even these premium batteries lose capacity.

• Common signs a GH1 / GH2 battery bank needs replacement:
• Shorter runtime for lights, fridge, fans, and inverter
• Slow charging from alternator or solar
• Inverter faults or low-voltage warnings
• Noticeable performance drop in hot or cold weather
• Needing to recharge more often than when the van was new

A replacement restores the original off-grid performance of the Tiffin GH Series electrical system.

GH1 / GH2 Platforms Supported

• 2025+ Tiffin GH1 (Sprinter AWD):
  • Standard 540Ah Battle Born lithium-ion battery kit
  • Optional 810Ah “Max Power” Battle Born lithium-ion battery kit
• 2026+ Tiffin GH2 (Sprinter AWD):
  • Standard 540Ah Battle Born lithium-ion battery kit
  • Optional 810Ah “Max Power” Battle Born lithium-ion battery kit

Both GH1 and GH2 use Battle Born GC3-style lithium batteries, a Victron inverter/charger, and solar charging, making them ideal candidates for professional replacement and expansion.

What’s Included

• Removal of the existing GH1 / GH2 Battle Born battery kit (for replacement jobs)
• Installation of new Battle Born GC3 or equivalent lithium modules
• Correct-gauge cabling and fuse protection
• Secure battery mounting for off-road and highway use
• Integration with the 3,000W Victron inverter/charger and solar controller
  
• Alternator, solar, and shore charging verification
• Battery management system checks and load testing

Scheduling

After checkout, the team will contact the owner to schedule installation and confirm GH1 or GH2 details, including current battery configuration and travel plans.