Product Information:


ReLion Lithium RB35-X
X = High Continuous and Peak Performance
12.8V | 35Ah | 448Wh
Weight: 5.17Kg
Replaces NP38-12 | REC36-12 | NPC38-12
Recommended Applications:
Solar | Machinery | Mobility
Dimensions:

Please note:
This is a non-stock item
Registered Disabled users can claim the VAT off this battery. The net unit price is £354.38.

Part of the Relion X-Series
Higher Continuous & Peak Performance:
Peak @ 100Amps compared to 70Amps (RB35)
Max Continuous @ 70Amps compared to 35Amps (RB35)

Weights 5.17Kg
Compared to lead acid equivalent that weights 14.2Kg
Full output, all the time
Will maintain a consistent power output until it shuts itself off when the charge gets too low. If running an electric motor, this means there will be no slow down when the charge gets low
Fully charged in as little as 3 hours
Or a maximum of 6 hours
Invest in your battery future
Relion's super long life means the upkeep cost per year is reduced compared to lead acid

Lithium Iron Phosphate (LiFePO4)
Relion's LiFePO4 cells are inherently made to be safe; so much so we consider them to be the safer than lead-acid. And if you don't take our word for it, they have passed over 7 major Safety & Stress tests, contain absolutely no acid, generate no gas emissions and are highly recyclable.
Part of the RELiON X-Series (High Continuous and Peak Performances), this efficient and fast-charging 12V 35Ah lithium iron phosphate battery is equipped with an M8 terminal type and a built-in battery management system (BMS). The RB35 battery meets UL, CE and IEC certifications.
All RELiON LiFePO4 batteries have installation flexibility, fast-charging capabilities and are maintenance free.
Compared to lead-acid and other lithium batteries, lithium iron phosphate batteries offer significant advantages, including improved discharge and charge efficiency, longer life span and the ability to deep cycle while maintaining power. LiFePO4 batteries often come with a higher price tag, but a much better cost over life of the product. No maintenance and super long life makes them a worthwhile investment and a smart long-term solution.
As long as your charge voltage is high enough, you can use any charger with this battery
(see below for charging specifications)
5 Year Full Warranty
ELECTRICAL SPECIFICATIONS
|
Nominal Voltage |
12.8 V |
Nominal Capacity |
35 Ah |
Capacity @ 25A |
84 min |
Energy |
448 Wh |
Resistance |
50 mΩ |
Efficiency |
99% |
Self Discharge |
<3% per Month |
Maximum Modules in Series |
3 |
MECHANICAL SPECIFICATIONS
|
Dimensions (L x W x H) |
7.7 x 5.2 x 6.7” 195 x 131 x 171 mm |
Weight |
11.4 lbs (5.17 kg) |
Terminal Type |
M8 (Bolt) |
Case Material |
ABS |
Enclosure Protection |
IP56 |
Cell Type |
Cylindrical |
Chemistry |
LiFePO4 |
DISCHARGE SPECIFICATIONS
|
Maximum Continuous Discharge Current |
70 A |
Peak Discharge Current |
100 A |
PCM Discharge Current Cut-Off |
160 A (±5 A) |
Recommended Low Voltage Disconnect |
11 V |
PCM Discharge Voltage Cut-Off |
8 V |
Reconnect Voltage |
7.7-9.6 V |
Short Circuit Protection |
200-800 µs |
CHARGE SPECIFICATIONS
|
Recommended Charge Current |
17.5 A |
Maximum Charge Current |
70 A |
PCM Charge Current Cut-Off |
160 A (±20 A) |
Recommended Charge Voltage |
14.2 V - 14.6 V |
PCM Charge Voltage Cut-Off |
15.6 V |
Reconnect Voltage |
15.2 V |
Balancing Voltage |
14.4 V |
TEMPERATURE SPECIFICATIONS
|
Discharge Temperature |
-20 to 60 ºC |
Charge Temperature |
0 to 55 ºC |
Storage Temperature |
-20 to 60 ºC |
PCM High Temperature Cut-Off |
75 ºC |
COMPLIANCE SPECIFICATIONS
|
Certifications |
CE (battery) |
|
UN38.3 (battery) |
|
UL1642 & IEC62133 (cells) |
Shipping Classification |
UN 3480, CLASS 9 |
PERFORMANCE CHARACTERISTICS






Unparalleled Expertise
Batteries are a critical yet commonly overlooked part of product design. RELiON’s engineers are the industry’s best and brightest in battery design, and their project development and manufacturing expertise keeps us ahead of our competition. Plus, their dedicated testing and R&D facility gives them the tools they need to perform at the highest level.
Performance with Peace of Mind
Not only do RELiON lithium batteries work hard so you can play hard, they’re an inherently safe chemistry and engineered with exclusive safety measures, including state-of-the-art battery management system (BMS) that protects against over-charge, over-discharge, over-temperature and short circuit conditions. At RELiON, safety comes standard so you never have to worry.
Our Quality Standard: The Best
Relion's dedication to quality means every battery they make undergoes extensive assurance checks to confirm every single component functions at peak performance. We’re proud to say their factory is ISO 9001:2008 certified, lithium batteries are UN38.3 certified, and their passion for perfection ensures we complete every order above world class standards.