**RECONDITIONED** 12V 135DP Sport Series Battery (1 YR Warranty)
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RECONDITIONED MILLERTECH SPORT SERIES LITHIUM BATTERIES
High-Performance Batteries. Fully Tested. Deeply Discounted.
Our reconditioned batteries are returned units that have been lightly used and thoroughly inspected by our technicians. Each battery undergoes a rigorous multi-point testing process to ensure it meets Millertech performance and safety standards before being resold.
These batteries deliver the same reliable power you expect from the Millertech brand — but at a significantly discounted price.
⚠️ Reconditioned batteries may show minor cosmetic wear.
6 in stock
Description
| Capacity 135AH |
Voltage 12.8V |
Weight 33 lbs |
Size 13” x 6.75” x 9” |
BMS: Yes
Chemistry: LFP
Efficiency: 98%
Memory: None
Max Charge/Voltage: 14.6V
Cut-off Voltage: 33V
Max Charge/Discharge Current: 1035
Operating Temp: -4°F – 140°F
Low Temp Charging Protection: Yes
Group Size: 31
Cell Type: Prismatic
Bluetooth: Yes
Dual Purpose Batteries LiFeP04 are quickly becoming a popular item that many enthusiasts demand. Our team of Engineers and Technicians are a very aggressive group and were not willing to take a backseat on this trend. This battery has enough cranking amps to start even the largest engines in the industry, plus they have enough reserve capacity to power multiple power hungry graphs for 8 plus hours. These Dual Purpose models will change the way anglers think about there power needs forever.
(KEY FEATURES)
BCI Group Size 31
Bluetooth activated to connect directly to our MillerTech App. The MillerTech App gives you in depth, real-time data, taking the guessing game completely away. Power with Confidence!
Custom moulded, heavy duty, reclosable battery case. This custom case also has convenient hold down strap grooves moulded into the side corners helping to keep your straps seated securely in place.
Large heavy duty battery terminals ensuring there is no heat build up when your application demands maximum power!
The Sport Series Marine batteries are all sealed with a thick rubber gasket along the lid connection point. This means they are Marine approved IP65 rated. A completely sealed battery case will cause condensation, so we build them with a marine grade Stainless Steel breather vent. Our vent sits on the top of the case unlike some others where the vent sits down inside catching rain and dirt.
THE MILLERTECH RECONDITIONED SPORT SERIES LITHIUM BATTERY
1-YEAR LIMITED WARRANTY
WARRANTY TERMS:
From the date of your battery purchase, your Millertech Sport Series Lithium Battery is covered by a 1-year limited warranty. If your battery stops working due to a manufacturing defect within the first year, we will repair or replace it with a battery of equal or greater value free of charge.
AFTER 1 YEAR:
If a manufacturer’s defect is identified after the 1-year warranty period, Millertech will still support you. We offer battery repair for a flat fee of $50, including inspection and repair of the defect.
SHIPPING:
We cover all shipping costs associated with returning your battery for repair or replacement during the 1-year warranty period.
After the 1-year period, the customer is responsible for shipping costs.
EXCLUSIONS:
This warranty only covers manufacturer defects. Damage due to misuse, abuse, neglect, improper installation, or normal wear and tear is not covered.
PROOF OF PURCHASE:
You don’t need one. If it’s Millertech, we’ll take care of you!
FOR WARRANTY SERVICE CALL: 855-MAX-LITH
EMAIL: warranty@millertechenergy.com



