RAYSTECH LFP Battery S Series User manual

Thank you for purchasing our product. Please read this manual carefully before using it,
and operate it strictly in accordance with the product manual. After reading it, please
keep it in a safe place for future reference.

About operation
Warning
Before using the product, please read the product specification,
instruction manual and precautions carefully to understand the use
method and application scope of the product.
Batteries cannot be used outdoors in rainy and snowy weather.
During daily use, keep it away from heat and high voltage, and
prevent children from playing with the battery, and do not hit the
battery.
If the product is used incorrectly, the circuit is connected
incorrectly, the input power or the load function parameters do not
match the performance parameters marked in the product
specification, etc., these phenomena are improper use. The
company does not assume any responsibility for damage to the
product, load and surrounding connections due to improper use.
Discarded batteries should be handled safely and properly, do not
put into fire or water.
Do not short-circuit the positive and negative poles of the battery,
do not disassemble the battery by yourself, and do not leave the
battery in a damp place to avoid danger.
The battery pack should be stored at ambient temperature
(ambient temperature: charge 0 to 45 ℃, discharge -20 to 60 ℃).
and should be charged to a capacity of 40%~60%. Working and
storage humidity: <90% RH。To prevent the battery from being
over-discharged, a full charge must be performed once the storage
time exceeds 2 months.
The battery pack should be used under specified conditions, and
battery performance over one year of storage is not guaranteed.
The battery must meet relevant regulations during transportation,
such as packaging, documentation, and labeling requirements.

RAYSTECH LFP Battery Series & Parallel Guidance
1. Batteries cannot be used in mixed batches, only the same batch can be used in series
or parallel
2. Each battery must be fully charged before the batteries are connected in series or in
parallel, and the voltage difference of the battery pack should be within 100mV
3. When the battery is under voltage, the BMS will perform shutdown protection. At this
time, press the switch on the display, and the display will light up, but the battery has no
output at this time; you can connect the battery to the inverter to charge or use the charger
to charge and activate the battery , and the display switch can also wake up the battery.
4. During the battery charging process, the charging mode will change from CC to CV, and
when the OLED display shows full power, the mode will automatically switch to CV mode.
After the battery is fully charged, it will automatically enter the balance state. Do not
remove the charger at this time and continue to charge the battery until the OLED display
voltage is 14.6V (12.8V battery)/29.2V (25.6V battery)
5. The maximum current of the battery system used in series or parallel is 100A
6. When the batteries are used in series or in parallel, the DIP switches must be set
correctly according to the user manual. Confirm all the power cables and communication
cables are connected correctly, then the load can be connected. Finally, according to the
order from the last slave battery to the master battery, turn on the battery in turn, please be
sure to start the master battery at last (the power cables should be as thick as possible and
has good conductivity, the contact surface of the connection is large, and there is no
looseness, etc.)
7. When the batteries are used in series or in parallel, the battery which connected to the
positive pole of the load is used as the master battery, other batteries are slaves, and the
negative pole of the last slave is connected to the negative pole of the load.
8. Do not press the button to turn off any battery or change the DIP switch during use,. If
you want to change the mode, please turn off all the batteries in turn according to the
power-on sequence, and finally disconnect the load. Then you can reset the mode
according to the user manual.
PCS Recommended charging and discharging protection
threshold parameters:
12V system PCS recommended charging voltage parameter for serial connection 3.6V x
4Cell=14.4V Discharge cut-off protection voltage 2.7 x 4Cell=10.8V
24V PCS recommended charging voltage parameter for serial connection 3.6V x
8Cell=28.8V Discharge cut-off protection voltage 2.7 x 8Cell=21.6V
48V PCS recommended charging voltage parameter for serial connection 3.6V x
16Cell=57.6V Discharge cut-off protection voltage 2.7 x 16Cell=43.2V

Description and operation process of parallel equaliza-
tion mode:
1. The premise of using the parallel balance mode: the voltage difference
between each battery in the system before series or parallel ≥ 0.3V
2. Cut-off condition of parallel balance mode: the voltage difference between
each battery in the system is less than 0.1V
3. Connect the batteries in parallel according to the parallel mode, no need to
connect the inverter, ensure that the parallel cable, communication cable, and
DIP settings are all correct, for all connected battery, turn DIP switches 2, 3, and
4 upward; 1, 5, 6, 7, 8 down. In the order from the last slave battery to the master
battery, turn on the batteries and enter the parallel balance mode.
Instructions and operating procedures for single battery
use mode:
When the battery leaves the factory, it will be configured as a single battery by
default, and the setting mode is the dial 1234 up and 5678 down.
If you need to use single battery only, please make sure that the dial setting is
correct before use, otherwise it will not turn on.
Series or Parallel battery use mode:
Please refer to the instructions for the 1234 dial position of the DIP switch, and
the 5678 dial position is always down.
parallel equalization
single battery
Default config
RAYSTECH LFP Battery product Series parameter table
Single battery rated voltage/V
Rated capacity of a single battery/Ah
Single battery standard charging current/A
Maximum discharge current of a single battery/A
Maximum discharge power of a single battery/W
The maximum number of serial connections in the system/PCS
Series system maximum voltage/V
12.8V
50Ah
25A
50A
650W
4
51.2V
12.8V
100Ah
50A
100A
1300W
4
51.2V
12.8V
200Ah
50A
100A
1300W
4
51.2V
25.6V
100Ah
50A
100A
2600W
2
51.2V
25.6V
200Ah
50A
100A
2600W
2
51.2V
51.2V
200Ah
50A
100A
5200W
1
51.2V
Remarks: SRAYSTECH LFP Battery can be used in series or parallel, The batteries need to be fully charged before
connecting in series; when using the RAYSTECH LFP Battery, you need to connect the communication cable (485)
and adjust the DIP switch (DIP)

2pcs 3pcs 4pcs
Master
Battery
Qty
Slave 1
Slave 2
Slave 3
2pcs 3pcs 4pcs
Master
Battery
Qty
Slave 1
Slave 2
Slave 3

Warranty of RAYSTECH LFP Battery
This warranty specified below applies to RAYSTECH LFP battery to consumer through authorized
reseller or RAYSTECH. The accessories and tool kits provided are not included. If the unit suffers
major failure you will be provided with a replacement unit and your warranty will be transferred to
the new unit. The units must only be used with controllers or equipment which is explicitly
deemed compatible by RAYSTECH.
1.Purpose
The purpose of this warranty is to define the matters related to warranty policy of products.
2.Warranty Condition
2.1Warranty Period
The products warranty period is two (2) years or 1500 cycles @80% DOD whichever comes first.
The Warranty commences from:-
(1) the date of installation or
(2) the 180th day after date the Product was manufactured, whichever is earlier.
This Warranty period covers a capacity equivalent to 1 cycle per day.
Cycle:Discharge the nominal capacity of a charged battery and charge it afterwards.
Test conditions: 0.2C Charging/Discharging, @25℃ 80% DOD.
Regarding Self-discharging degradation,180 days after ex-work is ensured.
If the casing, display screen, handle, and power terminal can be proved by the user and approved
by RAYSTECH to be non-artificial damage, RAYSTECH will provide free replacement materials
within one year and be responsible for the replacement.
2.2Limitation of Warranty scope
Under this Warranty, RAYSTECH is responsible for either battery replacement or battery repair.
In no event will RAYSTECH be liable for any consequential, incidental or punitive damages
(including without limitation of loss of profit, harm to goodwill or business reputation, or delay
damages) arising from or out of the Product or its installation, use, performance or non-perfor-
mance, or any defect or breach of warranty, whether based on contract, warranty, negligence,
strict liability, or any other method or convention.
Subject to below, RAYSTECH will, at its sole option, repair or replace the Products or any part
thereof, if such Products are faulty or defective in manufacture or materials.
RAYSTECH will endeavor to replace any Products which require to be replaced under this
Warranty with products of equivalent appearance, size, and functionality on a like for like basis.
Replacement of Products may not be brand new but with quality and specification compliant with
the Product specifications. Where this is not feasible, due to technological advancements,
RAYSTECH will supply another type of product of at least the same value and standard, although
it may be of different size, shape, color and/or capacity.
If the Products are replaced within the Warranty Period, the remaining Warranty Period will be
automatically transferred to the replacement products. In respect of valid claims under this

Warranty, the end-user will not be charged for reasonable costs associated with the making of a
warranty claim, including warranty processing costs, the cost of replacement parts and freight.
Reimbursement for necessary and reasonably incurred costs or expenses in making valid warranty
claims under this Warranty may be claimed. Documentary evidence in support of such claim will
be required.
2.3Exclusions of Warranty
Damage or impairment to the Products resulting from any of following activities are NOT covered
by this Warranty:
- Installation or use with any devices not approved as compatible by RAYSTECH.
- Failure to install or use the battery in the way intended, or as demonstrated in the installation
manual including incorrect-installation of cables and connections.
- Failure caused by charger or inverter unit.
- Incorrect transportation, storage, installation or wiring by consumer or installer;if buyer fails to
use the original packing materials provided by seller during the transportation of equipment the
products damage or failure shall not fall under the warranty scope of the product.
- Mistreatment of the product including incorrect installation environment, incorrect
temperatures or using the units other than in the specified manner.
- Damage caused by any impact, physical trauma to the unit such as dropping or mishandling.
- Attempts to change the functionality of the unit in any way.
- Exposure of the Product to movement or shaking following installation, or temperatures of
more than 50°C or below -10°C;
- Using the battery outside of the clearly stated performance criteria for the unit.
- Water ingress, corrosive gas damage or installation in dirty environments causing particles to
affect performance.
- Anyone other than those authorized by RAYSTECH may not modify, disassemble, repair or
replace the product;
- The unit must have clearly identifiable and authentic serial number and labels on the unit.
- Products suffered any external influences including unusual physical force, electrical stress
(power failure surges,inrush current,lightning,flood,fire,accidental breakage,etc)
- Extensive superficial damage to the case demonstrating impact or mishandling or poor
protection of the battery.
- Product damage and defect caused by deliberately or willful act.
- Products failure is not reported to seller or RAYSTECH authorized service partner within 1
week of appearance.
- The Product not being operated for any period of 6 months or more.
- Unusual physical or electrical stress caused by Force majeure, such as power failure surges,
inrush current, lightning, flood, fire, accidental breakage, etc.;
3.Performance Warranty
RAYSTECH guarantees that RAYSTECH LFP battery will retain more than or equal to 70% of usable
capacity(80%of Nominal capacity)for 2 years or 1500 cycles @80% DOD whichever comes
first.The Warranty commences from:-
(1) the date of installation or
Warranty of RAYSTECH LFP Battery
This warranty specified below applies to RAYSTECH LFP battery to consumer through authorized
reseller or RAYSTECH. The accessories and tool kits provided are not included. If the unit suffers
major failure you will be provided with a replacement unit and your warranty will be transferred to
the new unit. The units must only be used with controllers or equipment which is explicitly
deemed compatible by RAYSTECH.
1.Purpose
The purpose of this warranty is to define the matters related to warranty policy of products.
2.Warranty Condition
2.1Warranty Period
The products warranty period is two (2) years or 1500 cycles @80% DOD whichever comes first.
The Warranty commences from:-
(1) the date of installation or
(2) the 180th day after date the Product was manufactured, whichever is earlier.
This Warranty period covers a capacity equivalent to 1 cycle per day.
Cycle:Discharge the nominal capacity of a charged battery and charge it afterwards.
Test conditions: 0.2C Charging/Discharging, @25℃ 80% DOD.
Regarding Self-discharging degradation,180 days after ex-work is ensured.
If the casing, display screen, handle, and power terminal can be proved by the user and approved
by RAYSTECH to be non-artificial damage, RAYSTECH will provide free replacement materials
within one year and be responsible for the replacement.
2.2Limitation of Warranty scope
Under this Warranty, RAYSTECH is responsible for either battery replacement or battery repair.
In no event will RAYSTECH be liable for any consequential, incidental or punitive damages
(including without limitation of loss of profit, harm to goodwill or business reputation, or delay
damages) arising from or out of the Product or its installation, use, performance or non-perfor-
mance, or any defect or breach of warranty, whether based on contract, warranty, negligence,
strict liability, or any other method or convention.
Subject to below, RAYSTECH will, at its sole option, repair or replace the Products or any part
thereof, if such Products are faulty or defective in manufacture or materials.
RAYSTECH will endeavor to replace any Products which require to be replaced under this
Warranty with products of equivalent appearance, size, and functionality on a like for like basis.
Replacement of Products may not be brand new but with quality and specification compliant with
the Product specifications. Where this is not feasible, due to technological advancements,
RAYSTECH will supply another type of product of at least the same value and standard, although
it may be of different size, shape, color and/or capacity.
If the Products are replaced within the Warranty Period, the remaining Warranty Period will be
automatically transferred to the replacement products. In respect of valid claims under this

(2)the 180th day after date the Product was manufactured, whichever is earlier.
Capacity measurement condition (referenced IEC: 62619)
Ambient temperature: 25 ± 2℃
Total energy/Usable energy measured under specific conditions from RAYSTECH 0.2CC-CV at DC
side.
If you suspect RAYSTECH’s verification, the Product must be tested by an EU certified origination
or a third-party certification testing agency accredited by RAYSTECH. Meanwhile, the cost of any
3rd party evaluation service charge should be beard by yourself, unless your claim is proven to be
valid, in which case RAYSTECH will be responsible for the testing costs.
4.Warranty Policy
If on arrival the product is not of acceptable quality the customer is entitled to have the goods
repaired or replaced.
5.About Service Products/Parts
Service product or accessory be used as new or refurbished condition and RAYSTECH guaranteed
which performance is equal to or higher than replaced device.
If the product is no longer sold in the market, RAYSTECH would replace it with different kind of
product with equal or higher functions and performances, or the residual annual depreciation
value of the buyer paid price within the time limit for performance guarantee.
6.Claim Policy
Whether to repair or replace the product will be determined by RAYSTECH in its sole discretion.
Claims under this warranty must be made from authorized distributor whom the product was
purchased. Meanwhile, you must notify your distributor or RAYSTECH of a claim by:
- Give a call or E-mail to your distributor;
- Contract with RAYSTECH hotline or Email us directly.
within 48 hours of a faulty discovered.
The following items must be included:
- The original purchase receipt or equal valid document;
- Description of the alleged defect(s) to your distributor or RAYSTECH after service hot line or
send email to RAYSTECH;
- The product’s serial number and the initial installation date.
If you suspect that the battery is faulty, you should return the device to your distributor, and the
user will be responsible for the logistics cost of returning the product. After inspection by
designated experts, if the product is deemed to be faulty, we will issue a replacement or repaired
equipment, and the user will be responsible for the logistics cost of returning the equipment to us
(based on standard acceptable logistics costs).If the product has been tested without failure, the
user should bear the cost of testing and testing in addition to the reasonable logistics cost.
7.Out Of Warranty
In the event the Product is out of warranty, RAYSTECH may (in its discretion) provide certain
Warranty of RAYSTECH LFP Battery
This warranty specified below applies to RAYSTECH LFP battery to consumer through authorized
reseller or RAYSTECH. The accessories and tool kits provided are not included. If the unit suffers
major failure you will be provided with a replacement unit and your warranty will be transferred to
the new unit. The units must only be used with controllers or equipment which is explicitly
deemed compatible by RAYSTECH.
1.Purpose
The purpose of this warranty is to define the matters related to warranty policy of products.
2.Warranty Condition
2.1Warranty Period
The products warranty period is two (2) years or 1500 cycles @80% DOD whichever comes first.
The Warranty commences from:-
(1) the date of installation or
(2) the 180th day after date the Product was manufactured, whichever is earlier.
This Warranty period covers a capacity equivalent to 1 cycle per day.
Cycle:Discharge the nominal capacity of a charged battery and charge it afterwards.
Test conditions: 0.2C Charging/Discharging, @25℃ 80% DOD.
Regarding Self-discharging degradation,180 days after ex-work is ensured.
If the casing, display screen, handle, and power terminal can be proved by the user and approved
by RAYSTECH to be non-artificial damage, RAYSTECH will provide free replacement materials
within one year and be responsible for the replacement.
2.2Limitation of Warranty scope
Under this Warranty, RAYSTECH is responsible for either battery replacement or battery repair.
In no event will RAYSTECH be liable for any consequential, incidental or punitive damages
(including without limitation of loss of profit, harm to goodwill or business reputation, or delay
damages) arising from or out of the Product or its installation, use, performance or non-perfor-
mance, or any defect or breach of warranty, whether based on contract, warranty, negligence,
strict liability, or any other method or convention.
Subject to below, RAYSTECH will, at its sole option, repair or replace the Products or any part
thereof, if such Products are faulty or defective in manufacture or materials.
RAYSTECH will endeavor to replace any Products which require to be replaced under this
Warranty with products of equivalent appearance, size, and functionality on a like for like basis.
Replacement of Products may not be brand new but with quality and specification compliant with
the Product specifications. Where this is not feasible, due to technological advancements,
RAYSTECH will supply another type of product of at least the same value and standard, although
it may be of different size, shape, color and/or capacity.
If the Products are replaced within the Warranty Period, the remaining Warranty Period will be
automatically transferred to the replacement products. In respect of valid claims under this

after-sales service to Original Buyer, but all the costs and expenses, such as parts, labour costs
and travel expenses, shall be borne by Original Buyer. To request such after-sales service Original
Buyer must provide sufficient information about any defects, to enable RAYSTECH Partner to
determine whether such defects are capable of repair.
8.Warranty Restriction
Unless otherwise specified herein, to the extent permitted by applicable law, the Warranty Letter
and above remedies shall be exclusive and replace all other guarantees and remedies, oral or in
writing, expressed or implied. To the extent permitted by applicable law, RAYSTECH expressly
reject any and all legal or implied warranty, including but not limited to warranties of
merchantability, fitness for a particular purpose and hidden or potential defects. If RAYSTECH
cannot abandon implied warranty as prescribed by applicable law or the guarantee specified by
applicable laws, all of such guarantees and warranties shall limit to implied warranty as prescribed
by applicable law or the scope within applicable laws and shall be under mandatory application
according to applicable law. No distributor, agent or staff of RAYSTECH and / or RAYSTECH
Authorized Service Partner is authorized to make any revision, extension or addition to the quality
Warranty. The legality and enforceability of remaining clauses herein shall not be affected or
damaged if any of clauses herein is adjudged to be illegal or unenforceable. Unless otherwise
specified herein, to the maximum range permitted by applicable law, RAYSTECH will not be liable
for any direct, indirect, special, accidental or derivative losses caused by the purchase or use of
Products and its system, including but not limited to the loss of use, loss in income, actual or
expected loss in revenue (including contract revenue losses), loss of the use of money, loss of
anticipated savings, loss of business, loss of opportunity, loss of goodwill, loss of reputation,
personal injury or damage loss, or the indirect or derivative loss or damage (including any
expense arising from the replacement of equipment and property, resumption of production, etc.)
caused by any reasons.
LIABILITY FROM ANY CAUSE WHATSOEVER SHALL IN NO EVENT EXCEED THE AMOUNT OF THE
PURCHASE PRICE PAID BY PRODUCT OWNER TO RAYSTECH FOR SUCH PRODUCT GIVING RISE
TO THE LIABILITY. EXCEPTED FROM THIS IS LIABILITY ON THE GROUNDS OF CULPABLE INJURY
TO LIFE, PHYSICAL INJURY OR INJURY TO HEALTH AND THE MANDATORY LIABILITY FROM
INTENT OR GROSS NEGLIGENCE.
9.Miscellaneous
This Warranty shall form part of the purchase contract in respect of the Products and shall be
complied with by all parties involved.
Warranty of RAYSTECH LFP Battery
This warranty specified below applies to RAYSTECH LFP battery to consumer through authorized
reseller or RAYSTECH. The accessories and tool kits provided are not included. If the unit suffers
major failure you will be provided with a replacement unit and your warranty will be transferred to
the new unit. The units must only be used with controllers or equipment which is explicitly
deemed compatible by RAYSTECH.
1.Purpose
The purpose of this warranty is to define the matters related to warranty policy of products.
2.Warranty Condition
2.1Warranty Period
The products warranty period is two (2) years or 1500 cycles @80% DOD whichever comes first.
The Warranty commences from:-
(1) the date of installation or
(2) the 180th day after date the Product was manufactured, whichever is earlier.
This Warranty period covers a capacity equivalent to 1 cycle per day.
Cycle:Discharge the nominal capacity of a charged battery and charge it afterwards.
Test conditions: 0.2C Charging/Discharging, @25℃ 80% DOD.
Regarding Self-discharging degradation,180 days after ex-work is ensured.
If the casing, display screen, handle, and power terminal can be proved by the user and approved
by RAYSTECH to be non-artificial damage, RAYSTECH will provide free replacement materials
within one year and be responsible for the replacement.
2.2Limitation of Warranty scope
Under this Warranty, RAYSTECH is responsible for either battery replacement or battery repair.
In no event will RAYSTECH be liable for any consequential, incidental or punitive damages
(including without limitation of loss of profit, harm to goodwill or business reputation, or delay
damages) arising from or out of the Product or its installation, use, performance or non-perfor-
mance, or any defect or breach of warranty, whether based on contract, warranty, negligence,
strict liability, or any other method or convention.
Subject to below, RAYSTECH will, at its sole option, repair or replace the Products or any part
thereof, if such Products are faulty or defective in manufacture or materials.
RAYSTECH will endeavor to replace any Products which require to be replaced under this
Warranty with products of equivalent appearance, size, and functionality on a like for like basis.
Replacement of Products may not be brand new but with quality and specification compliant with
the Product specifications. Where this is not feasible, due to technological advancements,
RAYSTECH will supply another type of product of at least the same value and standard, although
it may be of different size, shape, color and/or capacity.
If the Products are replaced within the Warranty Period, the remaining Warranty Period will be
automatically transferred to the replacement products. In respect of valid claims under this

G2
RAYSTECH
This user manual is applicable to RAYSTECH LFP Battery S, S Pro series battery which produced after
May 2022
This manual suits for next models
1
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